scholarly journals Bis[μ-N,N′-(pyridine-2,6-diyl)bis(trimethylsilylamido)-1κ2N1,N2;2:3κ2N6:N6]bis(tetrahydrofuran)-2:3κ2O-1-nickel(II)-2,3-lithium(I)

IUCrData ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Alan M. Boltin ◽  
Gary L. Guillet
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Electrostatic Interactions ◽  
Rotational Symmetry ◽  
Title Complex ◽  
Planar Geometry ◽  
Intermolecular Hydrogen Bonding ◽  
Trimethylsilyl Group ◽  
Square Planar ◽  
Dominant Feature

The title complex, [Li2Ni(C11H21N3Si2)2(C4H8O)2], is a trimetallic complex of two LiIcations and a NiIIcation bridged by twoN,N′-(pyridine-2,6-diyl)bis(trimethylsilylamide) ligands that crystallizes in theFdd2 space group. The molecule hasC2rotational symmetry, with the NiIIcation located on the twofold axis. The coordination sphere of the NiIIcation is composed of two amido N and two pyridyl N-atom donors in a distorted square-planar geometry. The LiIcations are coordinated by two amido N-atom donors and a tetrahydrofuran molecule with a long interaction with a pyridyl N-atom donor. The coordinating tetrahydrofuran ligand and a trimethylsilyl group are disordered. Intra- or intermolecular hydrogen bonding, as well as π–π stacking, are not observed between the molecules, likely indicating that weak electrostatic interactions are the dominant feature leading to the crystal structure.

scholarly journals (18-Crown-6-κ6O){(trimethylsilyl)[6-(trimethylsilylamino)pyridin-2-yl-κN1]azanido-κN}potassium(I)

IUCrData ◽  
2016 ◽  
Vol 1 (8) ◽  
Author(s):  
Sydney E. Toney ◽  
Patrick C. Hillesheim ◽  
Gary L. Guillet
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Electrostatic Interactions ◽  
Crystal Packing ◽  
Ion Pair ◽  
Membered Ring ◽  
Title Complex ◽  
Intermolecular Hydrogen Bonding ◽  
Contact Ion Pair ◽  
Dominant Feature

The title complex, [K(C11H22N3Si2)(C12H24O6)], contains a single K+cation coordinated by a monoanionic (6-trimethylsilylaminopyridin-2-yl)(trimethylsilyl)azanide (HL) ligand and an 18-crown-6 ligand. One SiMe3group in HLis disordered over two positions, with an occupancy ratio of 0.727 (7):0.273 (7). The K+cation is eight-coordinated, distributed between the pyridyl and azanide N atoms of HL, forming a four-membered ring, and a κ618-crown-6 ligand. The complex is best described as a contact ion pair and, unlike other similar literature examples, this complex does not dimerize. No intermolecular hydrogen bonding is observed in the crystal structure, likely indicating that weak electrostatic interactions are the dominant feature directing the crystal packing.

scholarly journals Bis(4-aminophenylhydroxamato-κ2 O,O′)copper(II) methanol disolvate

IUCrData ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Yansi Zhao ◽  
Yanmei Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Planar Geometry ◽  
Asymmetric Unit ◽  
Bidentate Ligands ◽  
Metal Centre ◽  
Square Planar ◽  
Solvent Molecules

In the title complex, [Cu(C7H7N2O2)2]·2CH3OH, the metal centre is coordinated by two 4-aminophenylhydroxamate bidentate ligands, in a distorted square-planar geometry. The asymmetric unit is completed by two methanol solvent molecules, which are involved in hydrogen bonding with N—H functionalities of the free hydroxamate groups. The crystal structure also features N—H...O bonds formed by the NH2 groups, and O—H...O hydrogen bonds with the methanol solvent molecules as donors.

(Malonato-κ2 O,O′)(1,10-phenanthroline-κ2 N,N′)palladium(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1471-m1473
Author(s):  
Nobuo Okabe ◽  
Yasunori Muranishi ◽  
Mamiko Odoko
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Complex ◽  
Planar Geometry ◽  
Stacking Interactions ◽  
Π Stacking ◽  
Square Planar ◽  
Phenanthroline Ligand

In the title complex, [Pd(C3H2O4)(C12H8N2)], the PdII center has a distorted cis-square-planar geometry defined by an O,O′-bidentate malonate ligand and a chelating 1,10-phenanthroline ligand. The crystal structure is stabilized by intermolecular π–π stacking interactions between pairs of 1,10-phenanthroline rings, as well as C—H...O hydrogen bonding.

scholarly journals Palladium(II) complexes of a bridging amine bis(phenolate) ligand featuring κ2 and κ3 coordination modes

2019 ◽  
Vol 75 (8) ◽  
pp. 1265-1269 ◽  
Author(s):  
Brendan J. Graziano ◽  
Bradley M. Wile ◽  
Matthias Zeller
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Planar Geometry ◽  
Intermolecular Hydrogen Bonding ◽  
Coordination Modes ◽  
Methyl Methyl ◽  
Ethyl Methyl ◽  
Square Planar ◽  
Solvent Molecules ◽  
Insight Into

Bidentate and tridentate coordination of a 2,4-di-tert-butyl-substituted bridging amine bis(phenolate) ligand to a palladium(II) center are observed within the same crystal structure, namely dichlorido({6,6′-[(ethane-1,2-diylbis(methylazanediyl)]bis(methylene)}bis(2,4-di-tert-butylphenol))palladium(II) chlorido(2,4-di-tert-butyl-6-{[(2-{[(3,5-di-tert-butyl-2-hydroxyphenyl)methyl](methyl)amino}ethyl)(methyl)amino]methyl}phenolato)palladium(II) methanol 1.685-solvate 0.315-hydrate, [PdCl2(C34H56N2O2)][PdCl(C34H55N2O2)]·1.685CH3OH·0.315H2O. Both complexes exhibit a square-planar geometry, with unbound phenol moieties participating in intermolecular hydrogen bonding with co-crystallized water and methanol. The presence of both κ2 and κ3 coordination modes arising from the same solution suggest a dynamic process in which phenol donors may coordinate or dissociate from the metal center, and offers insight into catalyst speciation throughout Pd-mediated processes. The unit cell contains dichlorido({6,6′-[(ethane-1,2-diylbis(methylazanediyl)]bis(methylene)}bis(2,4-di-tert-butylphenol))palladium(II), {(L 2)PdCl2}, and chlorido(2,4-di-tert-butyl-6-{[(2-{[(3,5-di-tert-butyl-2-hydroxyphenyl)methyl](methyl)amino}ethyl)(methyl)amino]methyl}phenolato)palladium(II), {(L 2 X)PdCl}, molecules as well as fractional water and methanol solvent molecules.

trans-Dichlorobis[diphenyl(p-tolyl)phosphine]palladium(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1705-m1707 ◽  
Author(s):  
Gideon Steyl ◽  
Leo Kirsten ◽  
Andreas Roodt
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Planar Geometry ◽  
Dimensional Chain ◽  
Intermolecular Hydrogen Bonding ◽  
State Structure ◽  
Metal Centre ◽  
One Dimensional ◽  
Hydrogen Bonding Pattern ◽  
Square Planar

The centrosymmetric title compound, [PdCl2(C19H17P)2], crystallizes with a square-planar geometry about the PdII metal centre. The most important bond distances include Pd—P (trans P) of 2.3404 (9) Å and Pd—Cl (trans Cl) of 2.2977 (12) Å. Weak intra- and intermolecular hydrogen bonding is observed in the solid-state structure between the chloro and phenyl H atoms. This weak intermolecular hydrogen-bonding pattern forms a one-dimensional chain along the b axis.

scholarly journals Intermolecular hydrogen bonding in isostructural pincer complexes [OH-( t-BuPOCOP t-Bu)MCl] (M = Pd and Pt)

2019 ◽  
Vol 75 (7) ◽  
pp. 1011-1014
Author(s):  
Markus Joksch ◽  
Anke Spannenberg ◽  
Torsten Beweries
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Pincer Complexes ◽  
Intermolecular Hydrogen Bonding ◽  
Square Planar ◽  
Chloride Ligand ◽  
Halide Ligand ◽  
Hydrogen Bonded

In the crystal structure of the isostructural title compounds, namely {2,6-bis[(di-tert-butylphosphanyl)oxy]-4-hydroxyphenyl}chloridopalladium(II), [Pd(C22H39O3P2)Cl], 1, and {2,6-bis[(di-tert-butylphosphanyl)oxy]-4-hydroxyphenyl}chloridoplatinum(II), [Pt(C22H39O3P2)Cl], 2, the metal centres are coordinated in a distorted square-planar fashion by the POCOP pincer fragment and the chloride ligand. Both complexes form strong hydrogen-bonded chain structures through an interaction of the OH group in the 4-position of the aromatic POCOP backbone with the halide ligand.

scholarly journals [1,2-Bis(diisopropylphosphanyl)ethane-κ2 P,P′](2-fluoro-N-{[(2-fluorophenyl)azanidyl]carbonyl}anilinido-κ2 N,N′)nickel(II)

IUCrData ◽  
2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Marcos Flores-Alamo ◽  
Francisco J. Perez-Ortiz ◽  
Alma Arevalo ◽  
Juventino J. Garcia
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Title Complex ◽  
Coordination Environment ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Derivatives Of

The molecular structure of the title complex, [Ni(C13H8F2N2O)(C14H32P2)] or Ni(oFPU)(dippe), where oFPU is the dianion of bis(2-fluorophenyl)urea and dippe is 1,2-bis(di-isopropylphosphino)ethane, comprises an NiII atom with a distorted square-planar coordination environment (geometry index τ4 = 0.195). One of the fluorophenyl rings of the oFPU ligand is disordered over two sets of sites in an 0.832 (7):0.168 (7) ratio. The crystal structure displays C—H...O and C—H...F hydrogen-bonding interactions, leading to chains with R 2 2(12) motifs extending parallel to [100]. The title compound might be of interest with respect to the production of urea and carbamate derivatives of nickel(II).

scholarly journals The crystal structure of ((cyclohexylamino){(Z)-2-[(E)-5-methoxy-3-nitro-2-oxidobenzylidene-κO]hydrazin-1-ylidene-κN 2}methanethiolato-κS)(dimethyl sulfoxide-κS)platinum(II): a supramolecular two-dimensional network

2019 ◽  
Vol 75 (10) ◽  
pp. 1486-1489
Author(s):  
Md. Azharul Arafath ◽  
Huey Chong Kwong ◽  
Farook Adam
Keyword(s):  
Crystal Structure ◽  
Dimethyl Sulfoxide ◽  
Chelate Ring ◽  
Title Complex ◽  
Planar Geometry ◽  
Maximum Deviation ◽  
Two Dimensional ◽  
Bite Angle ◽  
Dimensional Network ◽  
Square Planar

The PtII atom in the title complex, [Pt(C15H18N4O4S)(C2H6OS)], exists within a square-planar NS2O donor set provided by the N, S, O atoms of the di-anionic tridentate thiosemicarbazo ligand and a dimethyl sulfoxide S atom. The two chelate rings are coplanar, subtending a dihedral angle of 1.51 (7)°. The maximum deviation from an ideal square-planar geometry is seen in the five-membered chelate ring with an S—Pt—S bite angle of 96.45 (2)°. In the crystal, molecules are linked via N—H...O, C—H...O, C—H...N and C—H...π interactions into two-dimensional networks lying parallel to the ab plane. The conformations of related cyclohexylhydrazine-1-carbothioamide ligands are compared to that of the title compound.

scholarly journals Crystal structure of bis[S-hexyl 3-(4-methylbenzylidene)dithiocarbazato-κ2N3,S]palladium(II)

2015 ◽  
Vol 71 (3) ◽  
pp. m63-m64 ◽  
Author(s):  
M. Sabina Begum ◽  
M. Belayet Hossain Howlader ◽  
M. Chanmiya Sheikh ◽  
Ryuta Miyatake ◽  
Ennio Zangrando
Keyword(s):  
Crystal Structure ◽  
Intermolecular Interactions ◽  
Rotational Symmetry ◽  
Title Complex ◽  
Coordination Geometry ◽  
Chelating Ligands ◽  
Axis Direction ◽  
Twofold Axis ◽  
Square Planar

The whole molecule of the title complex, [Pd(C15H21N2S2)2], is generated by twofold rotational symmetry. The palladium(II) atom exhibits a square-planar coordination geometry, and is located on the crystallographic twofold axis that induces acisconfiguration of theN,Schelating ligands. In the crystal, molecules stack along thec-axis direction and there are no significant intermolecular interactions present. The structure was refined as an inversion twin with a final BASF parameter of 0.34 (2).

scholarly journals Bis[2,6-bis(trimethylsilylamino)pyridine-κN1]{[6-bis(trimethylsilylamino)pyridin-2-yl-κN1](trimethylsilyl)azanido-κN}lithium

IUCrData ◽  
2016 ◽  
Vol 1 (3) ◽  
Author(s):  
Justin A. Rave ◽  
Diego A. Garcia ◽  
Patrick C. Hillesheim ◽  
Gary L. Guillet
Keyword(s):  
Electrostatic Interactions ◽  
Crystal Packing ◽  
Chelate Ring ◽  
Title Complex ◽  
The Other ◽  
Lithium Cation ◽  
Intermolecular Hydrogen Bonding ◽  
Tetrahedral Environment ◽  
Pyridine Nitrogen ◽  
Dominant Feature

The title complex, [Li(C11H22N3Si2)(C11H23N3Si2)2], contains a single lithium cation coordinated to three ligands. This is the first reported example of the ligand 2,6-bis(trimethylsilylamino)pyridine supporting a monometallic complex. One ligand is mono-anionic and forms a four-membered chelate ring with the lithium cationviathe pyridine and silylamido N atoms. The other two ligands are neutral and bindviathe pyridine nitrogen. The lithium cation is coordinated in a tetrahedral environment. No intra- or intermolecular hydrogen bonding is observed in the crystal structure, likely indicating that weak electrostatic interactions are the dominant feature of the crystal packing.

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