Two- and three-dimensional coordination polymers based on zinc(II) and furan-2,5-dicarboxylic acid: structure variation due to metal-to-linker ratio

2018 ◽  
Vol 74 (12) ◽  
pp. 1719-1724 ◽  
Author(s):  
Yimin Mao ◽  
Peter Y. Zavalij
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Molar Ratio ◽  
Monoclinic Space Group ◽  
Structure Variation ◽  
Space Group ◽  
Hydrogen Bonding Pattern ◽  
Solvent Molecules ◽  
A Chain

Two ZnII-based coordination polymers (CPs) were synthesized by the hydrothermal method, using Zn(NO3)2·6H2O and furan-2,5-dicarboxylic acid (FDCA) in dimethylformamide (DMF) solvent, at 95 °C. Poly[tetrakis(dimethylazanium) [tetrakis(μ2-furan-2,5-dicarboxylato-κ2 O 2:O 5)dizinc(II)]], {(C2H8N)4[Zn2(C6H2O5)4]} n or {[DMA]4[ZnII 2(FDC)4]} n (DMA = dimethylazanium and FDC = furan-2,5-dicarboxylate), (1), was obtained with a 1:1 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group C2/c. Coordinated by ZnII ions, FDC2− ligands form 21 double-stranded helices propagating along the b axis. The helices are interconnected and extend laterally in the a direction, forming a two-dimensional (2D) sheet-like network. The 2D sheets are stacked along the c direction without interconnections. DMA cations are cocrystallized in (1) and are hydrogen bonded with carboxylate O atoms of the FDC2− ligands. The hydrogen-bonding pattern consists of R 2 2(4) and R 2 2(10) motifs alternating in a chain. Poly[bis(dimethylazanium) [bis(μ4-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5:κO 5)bis(μ3-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5)dizinc(II)] dimethylformamide 3.08-solvate], {(C2H8N)2[Zn2(C6H2O5)4]·3.08C3H7NO} n or {[DMA]2[ZnII 3(FDC)4]·3.08DMF} n , (2), was obtained with a 1:2 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group P21/c, forming a three-dimensional network. The pores are filled with DMA cations and DMF solvent molecules.

Synthesis, Structures and Properties of Two New Three-Dimensional Ce(III) Coordination Polymers with 2,2'-Bipyridine-4,4'-Dicarboxylic Acid

2013 ◽  
Vol 750-752 ◽  
pp. 1708-1711
Author(s):  
Rui Ping Zheng ◽  
Hui Yuan Chen ◽  
Jun Jie He ◽  
He Ping Zeng
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Dimethyl Formamide ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Space Group ◽  
Solvothermal Condition ◽  
Structures And Properties

Two new Ce(III) coordination polymers formulated as Ce(bpdc)(Hbpdc)(DMF)2 (1) and [Ce2(bpdc)3(DMF)2(H2O)4]·2DMF (2) (H2bpdc = 2,2'-bipyridine-4,4'-dicarboxylic acid, DMF = N,N-Dimethyl formamide) have been synthesized under solvothermal condition and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in monoclinic, space group C2/c with a = 2.2520(2), b = 1.17787(12), c = 1.16128(11) nm, α = 90, β = 95.5600(10), γ = 90°, V = 3.0658(5) nm3, Z = 4, Mr = 771.70, Dc = 1.672×10-9 g/cm3. Compound 2 crystallizes in triclinic, space group Pwith a = 1.00610(10), b = 1.17219(11), c = 1.36891(14) nm, α = 66.9340(10), β = 87.182(2), γ = 76.2570(10) °, V = 1.4411(2) nm3, Z = 1, Mr = 1371.25, Dc = 1.580×10-9 g/cm3. Both compounds exhibit 3D Ce(III)–organic frameworks. Furthermore, thermal stability and luminescent properties were also investigated. CCDC:(1)913670, (2)909563.

Self-assembling of three rare structurally various homomultinuclear CuII complexes derived from a bis(salamo)-based multioxime ligand

2021 ◽  
Vol 77 (5) ◽  
pp. 848-860
Author(s):  
Peng Li ◽  
Ting Zhang ◽  
Li-Li Li ◽  
Wen-Kui Dong
Keyword(s):  
Complex Structure ◽  
Three Dimensional ◽  
Monoclinic Space Group ◽  
Space Group ◽  
X Ray Crystallography ◽  
Self Assembling ◽  
Elemental Analyses ◽  
New Type ◽  
Spiral Structures ◽  
Solvent Molecules

A family of rare structurally different homometal multinuclear CuII bis(salamo)-based complexes, [Cu4(L)2(MeOH)2](ClO4)2·2MeOH (1), [Cu4(L)2(EtOH)2](NO3)2·2EtOH (2) and [Cu2(HL)(EtOH)Br2]·CHCl3 (3), has been successfully synthesized by the reactions of cupric salts with a bis(salamo)-based multidentate chelate ligand (H3 L). The salamo-based ligand [R-CH=N—O—(CH2) n —O—N=CH—R] is a new type of salen-based analog. Complexes (1) and (2) are isostructural structures, and crystallize in monoclinic space group P21/n with centrosymmetric spiral structures, where the main structures contain two fully deprotonated ligand (L)3− units, a charged tetranuclear CuII folding center and two coordinated solvent molecules. Complex (3) crystallizes in monoclinic space group Cc and consists of two CuII cations, one incompletely deprotonated ligand (HL)2− unit and one coordinated ethanol molecule, and forms a novel homo-binuclear CuII complex structure due to Br− counter anions. Complexes (1)–(3) have zero-dimensional cluster-based structures and are further assembled into three-dimensional frameworks via intermolecular interactions. Because of the different solvents and counter anions which have a significant influence on the structures of complexes (1)–(3), the interactions were quantitatively evaluated by Hirshfeld surfaces analyses. Complexes (1)–(3) have been characterized by elemental analyses, IR spectra, UV–vis spectra and X-ray crystallography analyses. In addition, fluorescence properties are evaluated and DFT calculations are performed.

Syntheses, Structures and Photoluminescent Properties of Two New Pb(II) and Cd(II) Coordination Polymers Constructed from 1,10-Phenanthroline-derived and 1,4-Naphthalenedicarboxylate Ligands

2012 ◽  
Vol 67 (1) ◽  
pp. 23-28
Author(s):  
Zhi-Guo Kong ◽  
Yu He ◽  
Na Xu ◽  
Jia Guo ◽  
Dan Li
Keyword(s):  
Coordination Polymers ◽  
Layer Structure ◽  
Luminescent Properties ◽  
Chain Structure ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
Hydrothermal Conditions ◽  
Space Group ◽  
Π Interactions ◽  
A Chain

Two new related coordination polymers, namely, [Pb(L)(1,4-ndc)] · 0.5H2O (1) and [Cd(L)(1,4- ndc)] · 0.5H2O (2), where L = 2-(3-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline and 1,4- ndc = 1,4-naphthalenedicarboxylate, were synthesized under hydrothermal conditions. Crystal data for 1: C62H36F2N8O9Pb2, monoclinic space group C2/c, a = 15.874(3), b = 19.982(4), c = 16.045(3) Å, β = 94.26(3), V = 5075.3(18) Å3, Z = 4. Crystal data for 2: C62H36Cd2F2N8O9, monoclinic space group P21/n, a = 12.622(2), b = 14.038(3), c = 14.938(3) Å , β = 100.81(2), V = 2600.0(8) Å3, Z = 2. In compound 1, the 1,4-ndc ligands connect the Pb(II) atoms to yield a chain structure. The L ligands are attached on the same side of the chain. The π-π interactions between L ligands of neighboring chains result in a 2D supramolecular architecture of 1. In compound 2, 1,4-ndc ligands link the Cd(II) atoms to generate a layer structure. The L ligands from adjacent layers are paired to furnish strong π-π interactions. Further, these layers are extended into 3D supramolecular architectures through these π-π interactions. The structural differences of 1 and 2 suggest the importance of the metal centers in the construction of the coordination polymers. The luminescent properties of the compounds were also investigated.

Hydrated metal(II) complexes of N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl) derivatives of glycine, glycylglycine, threonine, serine, valine and methionine: a monomeric complex and coordination polymers in one, two and three dimensions linked by hydrogen bonding

2004 ◽  
Vol 60 (1) ◽  
pp. 46-64 ◽  
Author(s):  
M. Luz Godino Salido ◽  
Paloma Arranz Mascarós ◽  
Rafaél López Garzón ◽  
M. Dolores Gutiérrez Valero ◽  
John N. Low ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Three Dimensions ◽  
Space Group ◽  
One Dimensional ◽  
Rotation Axes ◽  
Group 2 ◽  
Simple Chain ◽  
A Chain

Nine hydrated complexes of Group 2 (alkaline earth) cations with organic ligands which are N-substituted amino acids containing the 6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl group have been structurally characterized. The octahydrated calcium glycinate complex, where the six-coordinate Ca cation lies on an inversion centre in the space group P\bar 1, forms a finite (zero-dimensional) complex. The hexahydrated barium glycinate complex contains eight-coordinate Ba and it is isostructural with the known Sr analogue, and its one-dimensional coordination polymer takes the form of a simple chain. The octahydrated calcium and strontium threonine complexes are isostructural, with eight-coordinate cations lying on twofold rotation axes in the space group C2: the one-dimensional coordination polymers take the form of a chain of spiro-fused rings and a similar chain of spiro-fused rings is found in the heptahydrated barium serine complex, although here the ten-coordinate cation lies in a general position. In the tetrahydrated strontium and barium glycylglycinate complexes, the eight-coordinate cations lie on twofold rotation axes in the space group C2/c, but in the Sr complex the coordination polymer is a chain of spiro-fused rings, while in the Ba complex the coordination polymer forms deeply puckered sheets. There are two types of Ca site in the hexahydrated calcium valine complex: one is eight coordinate and gives rise to a two-dimensional coordination polymer, while the other is seven coordinate forming a finite, zero-dimensional coordination complex. In the heptahydrated barium methionine complex, the coordination polymer is three dimensional. In all of the complexes, the coordination aggregates are further linked by an extensive series of hydrogen bonds.

scholarly journals Syntheses, Crystal Structures and Characterization of Two New Pb(II) and Cu(II) Coordination Polymers Based on 2-(4-Fluorophenyl)-1Himidazo[ 4,5-f][1,10]phenanthroline and Benzenedicarboxylate Ligands

2011 ◽  
Vol 66 (9) ◽  
pp. 899-904
Author(s):  
Zhan-Lin Xu ◽  
Yu He ◽  
Hui-Lian Wang
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Polymers ◽  
Layer Structure ◽  
Three Dimensional ◽  
Chain Structure ◽  
Crystal Data ◽  
Triclinic Space Group ◽  
Space Group ◽  
Π Interactions ◽  
A Chain

Two new coordination polymers, [Pb(L)(1,3-bdc)] ·2.5H2O (1) and [Cu(L)(1,4-bdc)] (2) (L = 2- (4-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline; 1,3-bdc, 1,4-bdc = 1,3- and 1,4-benzenedicarboxylate), have been hydrothermally synthesized and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. Crystal data for 1: C54H40F2N8O13Pb2, triclinic, space group P¯1, a = 9.3468(19), b = 9.4607(14), c = 15.581(3) Å , α = 90.44(4), β = 101.13(3), γ = 113.97(3)°, V = 1229.6(4) Å3, Z = 1. Crystal data for 2: C27H15CuFN4O4, triclinic, space group P1¯, a = 9.640(6), b = 10.941(8), c = 11.865(5) Å , α = 62.694(4), β = 69.776(3), γ = 79.915(5)◦, V = 1043.2(11) Å3, Z = 2. In 1, the Pb(II) atoms are bridged by the 1,3-bdc ligands to yield a chain structure. The ligands L are only located on one side of the chain, where π · · ·π interactions among neighboring chains result in a supramolecular ladder, and the O-H· · ·O hydrogen bonding interactions further stabilize this structure. Compound 2 shows a layer structure, with stacking by π-π interactions to give a three-dimensional (3D) supramolecular architecture. N-H· · ·O hydrogen bonding further stabilizes the structure of 2.

Polysulfonylamine, LVIII [1] Erhaltung der Konformation des unkomplexierten Koronanden in einem supramolekularen 18-Krone-6-Komplex: Darstellung und Kristallstrukturen von 18-Krone-6-Dimesylamin (3/2) und von zwei Modifikationen des freien Dimesylamins / Polysulfonylamines, LVIII [1] Conservation of the Conformation of the Uncomplexed Coronand in a Supramolecular 18-Crown-6 Complex: Formation and Crystal Structures of 18-Crown-6-Dimesylamine (3/2) and of Two Modifications of Free Dimesylamine

1994 ◽  
Vol 49 (8) ◽  
pp. 999-1011 ◽  
Author(s):  
Armand Blaschette ◽  
Peter G. Jones ◽  
Karin Linoh ◽  
Ilona Lange ◽  
Martina Näveke ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Guest Molecule ◽  
Three Dimensional ◽  
Molar Ratio ◽  
Monoclinic Space Group ◽  
Monoclinic System ◽  
Space Group ◽  
Guest Species ◽  
Dimensional Network ◽  
Oxygen Atoms

The title compound 1 is an unprecedented example of an 18-crown-6 complex in which coronand rings preserve the conformation of the uncomplexed crystalline polyether. 1 is precipitated, independently of the molar ratio employed, by mixing methanolic solutions of its components at room temperature. The complex crystallizes in the monoclinic system, space group P21/n, with (at -130°C) a = 1771.9(7). b = 833.3(3), c = 2024.2(6) pm, β = 107.13(3)°, V = 2.856(2) nm3, Z = 4. Dϰ = 1.325 Mg m-3. The structure contains infinite chains of alternating host and guest species, in which every HN(SO2CH3)2 guest is linked via C-H ··· O(crown) and C-H ··· O(sulfonyl) interactions with two D3d-pseudosymmetric crown rings. Within the chain, each D3d ring acts as an acceptor in six C-H ··· O(crown) and as a donor in four C-H -O(sulfonyl) interactions. Equivalent molecules in the chain are related by v-translation. Pairs of antiparallel chains are connected into ladder-like strands by a sec­ond type of 18-crown-6 molecule that crystallographically preserves the centrosymmetric C′i conformation of the uncomplexed polyether. These rings accept, via their two symmetry- related pseudocorner oxygen atoms, an N-H ··· O hydrogen bond (H ··· O 210 pm) from one guest molecule in each chain and are also connected to the same guests by a C-H ··· O(sulfonyl) interaction. Parallel strands are linked through C-H- (crown) ··· O(sulfonyl) and C-H(crown) ··· O(crown) interactions to form a three-dimensional network. The H ··· O distances of the strand-building and the strand-connecting C-H ··· O interactions lie in the range 230-260 pm. For comparison, two modifications of the pure guest compound, crystallized from CCl4 (modification 2a) or CH2Cl2 (modification 2b), were structurally characterized. The crystallographic data (at -95 °C) are for 2a: monoclinic, space group P21/c, a = 767.5(2), b = 974.5(2), c = 915.0(3) pm, β = 105.80(2)°, V = 0.6585(3) nm3, Z = 4, Dϰ = 1.747 Mg m-3; for 2b: monoclinic, space group P21/c, a = 776.2(3), b = 997.1(3), c = 923.0(4) pm, β = 111.10(3)°, V = 0.6665(4) nm3. Z = 4, Dϰ = 1.726 Mg m 3. In both modifications, the molecules are connected by an N-H ··· O hydrogen bond (H ··· O 234 pm in 2a, 220 pm in 2b) into chains in the z-direction, the principal difference between 2a and 2b arising from the differing conformational character of the acceptor oxygen atoms. Corresponding bond lengths and bond angles in 2a and 2b and in the guest molecule of 1 are essentially identical, as are the torsion angles around the S-N bonds in 2a and 2b. The local C1 symmetry of the CO2SNSO2C framework in 2a and 2b changes to an approximate C2 symmetry upon complexation with 18-crown-6. thus optimizing the host-guest comple­mentarity.

scholarly journals Ionothermal Synthesis of Cadmium Coordination Polymers: Ionic Liquid Effects on the Synthesis, Structural, and Thermal Characterization

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4059
Author(s):  
Iñigo PerezF ◽  
Edurne S. Larrea ◽  
Begoña Bazán ◽  
Gotzone Barandika ◽  
M. Karmele Urtiaga ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Thermal Characterization ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Reaction Conditions ◽  
Space Group ◽  
Ionothermal Synthesis ◽  
3D Network ◽  
Pure Phase

Ionothermal synthesis is a little used method for the preparation of coordination polymers. By this method, two cadmium compounds were synthesized, 1, with formula Cd3(ox)F2(Ina)2 (Ina = isonicotinate) and 2, Cd(NO3)2(4,4′-Bpy) (4,4′-Bpy = 4,4′-Bipyridine). The modification of the reaction conditions has allowed to obtain 2 as a pure phase. The structure of both compounds was determined by a single-crystal X-ray diffraction. Compound 1 is isostructural to the previously reported Cd2Zn(ox)(OH)2(Ina)2. It crystallizes in the monoclinic space group P21/n and present a three-dimensional (3D) network, built-up from [Cd3(ox)F2]n2n+ layers, linked by isonicotinate ligands. Crystals of 2 are formed by twins of two components which are rotated ca. 180° to each other. This compound crystallizes in the triclinic P-1 space group and its structure can be describe as a two-dimensional (2D) 4 connected ‘sql’ net. The layers are composed by [Cd(NO3)2]n chains linked through 4,4′-Bpy ligands, and are pillared along the [011] direction. The thermal decomposition of 2 was studied by thermogravimetric and thermodiffractiometric techniques. The compound decomposes gradually starting from 160 °C, and due to heating, the structure suffers slight reversible changes in the bond distances and angles.

Iodo-nitroarenesulfonamides: interplay of hard and soft hydrogen bonds, I...O interactions and aromatic π...π stacking interactions

2001 ◽  
Vol 58 (1) ◽  
pp. 94-108 ◽  
Author(s):  
Craig J. Kelly ◽  
Janet M. S. Skakle ◽  
James L. Wardell ◽  
Solange M. S. V. Wardell ◽  
John N. Low ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Space Group ◽  
Rotation Axes ◽  
Π Stacking ◽  
Structural Database ◽  
A Chain

Molecules of N-(4′-iodophenylsulfonyl)-4-nitroaniline, 4-O2NC6H4NHSO2C6H4I-4′ (1), are linked by three-centre I...O2N interactions into chains and these chains are linked into a three-dimensional framework by C—H...O hydrogen bonds. In the isomeric N-(4′-nitrophenylsulfonyl)-4-iodoaniline, 4-IC6H4NHSO2C6H4NO2-4′ (2), the chains generated by the I...O2N interactions are again linked into a three-dimensional framework by C—H...O hydrogen bonds. Molecules of N,N-bis(3′-nitrophenylsulfonyl)-4-iodoaniline, 4-IC6H4N(SO2C6H4NO2-3′)2 (3), lie across twofold rotation axes in space group C2/c and they are linked into chains by paired I...O=S interactions: these chains are linked into sheets by a C—H...O hydrogen bond, and the sheets are linked into a three-dimensional framework by aromatic π...π stacking interactions. In N-(4′-iodophenylsulfonyl)-3-nitroaniline, 3-O2NC6H4NHSO2C6H4I-4′ (4), there are R^2_2(8) rings formed by hard N—H...O=S hydrogen bonds and R^2_2(24) rings formed by two-centre I...nitro interactions, which together generate a chain of fused rings: the combination of a C—H...O hydrogen bond and aromatic π...π stacking interactions links the chains into sheets. Molecules of N-(4′-iodophenylsulfonyl)-4-methyl-2-nitroaniline, 4-CH3-2-O2NC6H3NHSO2C6H4I-4′ (5), are linked by N—H...O=S and C—H...O(nitro) hydrogen bonds into a chain containing alternating R^2_2(8) and R^2_2(10) rings, but there are no I...O interactions of either type. There are two molecules in the asymmetric unit of N-(4′-iodophenylsulfonyl)-2-nitroaniline, 2-O2NC6H4NHSO2C6H4I-4′ (6), and the combination of an I...O=S interaction and a hard N—H...O(nitro) hydrogen bond links the two types of molecule to form a cyclic, centrosymmetric four-component aggregate. C—H...O hydrogen bonds link these four-molecule aggregates to form a molecular ladder. Comparisons are made with structures retrieved from the Cambridge Structural Database.

Anion-directed assembly of lanthanide coordination polymers with SMMs properties based on a dihydrazone ligand

2018 ◽  
Vol 233 (1) ◽  
pp. 51-59
Author(s):  
Lina Zhang ◽  
Peigao Duan ◽  
Yang Liu ◽  
Jingxian Sun ◽  
Dan Zhao ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Single Molecule ◽  
Variable Temperature ◽  
Ac Susceptibility ◽  
Directed Assembly ◽  
Magnetization Measurement ◽  
Vital Role ◽  
Diffusion Method ◽  
Monoclinic Space Group ◽  
Space Group

AbstractFour new Ln(III)-based coordination polymers (CPs), [Eu(HL)Cl2(DMF)2]·(H2L) (1), [Dy(HL)Cl2(DMF)2]·(H2L) (2), [Er(HL)Cl2(DMF)(CH3OH)]·(DMF) (3) and [Yb(HL)Cl2(DMF)(H2O)]·(DMF) (4) (H2L=2,6-bis[(3-methoxysalicylidene)hydrazinocarbonyl]pyridine) have been synthesized through the reaction of Ln(III) chloride and H2L by using the vapour diffusion method. Interestingly, Cl−as a template agent plays a vital role in the formation of the target complexes. Single-crystal X-ray diffraction studies indicate that1and2are isostructural and crystallize in triclinic space groupP1̅, while complexes3and4are isostructural and crystallize in monoclinic space groupC2/c. Variable temperature magnetization measurement (χMT–T) demonstrates possible antiferromagnetic interactions in complex2. Alternating-current (ac) susceptibility measurement furthermore indicated frequency dependence for both the in-phase (χ′) and out-of-phase (χ″) components in2, suggesting that there is a slow relaxation behavior of the magnetization, which is typical of single-molecule magnets (SMMs). This is the first time that Ln(III) CPs based on such a dihydrazone ligand has been reported so far.

Zwei neue Bis(trimethylsilyl)aminoderivate des Antimons: MeSb(N{SiMe3}2)2 und MeCl2Sb(N{SiMe3}2)2

1985 ◽  
Vol 40 (7) ◽  
pp. 872-877 ◽  
Author(s):  
W. Kolondra ◽  
W. Schwarz ◽  
J. Weidlein
Keyword(s):  
Raman Spectra ◽  
Structure Determination ◽  
Ir And Raman Spectra ◽  
Molar Ratio ◽  
Monoclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
R Value ◽  
New Compounds ◽  
Ir And Raman

Abstract Unexpectedly the reaction of SbCl3 with Na(N{SiMe3}2) in a 1:3 molar ratio forms MeSb(N{SiMe3}2)2, I, (Me = CH3) and other trimethylsilyl compounds. The colourless and liquid methylstibane derivative I is monomeric in solution and forms MeSbCl2(N{SiMe3}2)2 (II) on reaction with SO2Cl2. Both new compounds have been characterized by analyses, NMR, IR and Raman spectra. The X-ray structure determination for II shows the monoclinic space group P21/C with 4 monomeric units per cell. The structure was refined to an R-value of 0,052.

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