Zur Reaktion von [ { (CO)5Cr} (Ph2PCl)] mit (Me3Si)2Se. Die Kristallstrukturen von [{ (CO)5CrPh2P}2Se], [ { (CO)5Cr} (Ph2P)2Se] und [{ (CO)4Cr} (Ph2P)2Se] / Reaction of [{(CO)5Cr}(Ph2PCl)] with (Me3Si)2Se. The Crystal Structures of [{(CO)5CrPh2P}2Se], [{(CO)5Cr}(Ph2P)2Se] and [{(CO)4Cr}(Ph2P)2Se]

The reaction of [{(CO)5Cr}(Ph2PCl)] with (Me3Si)2Se in toluene at 298 K leads to the compounds [{(CO)5Ph2P}2Se] (1) and [{(CO)5Cr}(Ph2P)2Se] (2). If the reaction is carried out in ether as solvent at 308 K, [{(CO)4Cr}(Ph2P)2Se] (3) is obtained. The structures of 1, 2 and 3 were determined by single crystal X-ray analysis. 1, 2 and 3 contain the Ph2PSePPh2 ligand, which is coordinated to chromium carbonyl fragments in three different ways. 1 consists of a dinuclear complex in which two {(CO)5Cr} fragments are linked by a Ph2PSePPh2 group. In 2, only one phosphorus atom of the Ph2PSePPh2 ligand is bound to a {(CO)5Cr} unit. In 3, the Ph2PSePPh2 group is coordinated as a chelate ligand to a {(CO)4Cr} fragment.

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Crystal structures of (S)- and (R,S)-2,2′-bipyridine-3,3′-dicarboxylic acid 1,1′-dioxides and of their barium salts: absolute configuration and molecular distortion enforced by supramolecular self-assembly

Zeitschrift für Kristallographie - Crystalline Materials ◽

10.1524/zkri.1997.212.3.226 ◽

1997 ◽

Vol 212 (3) ◽

Cited By ~ 7

Author(s):

P. Vojtíšek ◽

I. Císařová ◽

J. Podlaha ◽

Z. Žák ◽

S. Böhm ◽

...

Keyword(s):

Single Crystal ◽

Dicarboxylic Acid ◽

Crystal Structures ◽

Absolute Configuration ◽

Self Assembly ◽

Barium Salt ◽

X Ray Diffraction ◽

X Ray

AbstractCrystal structures of the title compounds were determined by single crystal X-ray diffraction. Absolute configuration of the barium salt of (+)-(

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Die Kristallstrukturen der isotypen Verbindungen Ba3[MoN4] und Ba3[WN4] / The Crystal Structures of the Isotypic Compounds Ba3[MoN4] and Ba3[WN4]

Zeitschrift für Naturforschung B ◽

10.1515/znb-1991-0502 ◽

1991 ◽

Vol 46 (5) ◽

pp. 566-572 ◽

Cited By ~ 22

Author(s):

Axel Gudat ◽

Peter Höhn ◽

Rüdiger Kniep ◽

Albrecht Rabenau

Keyword(s):

Transition Metals ◽

Single Crystal ◽

Crystal Structures ◽

Structure Type ◽

X Ray Diffraction ◽

X Ray ◽

Ternary Compounds ◽

The Third

The isotypic ternary compounds Ba3[MoN4] and Ba3[WN4] were prepared by reaction of the transition metals with barium (Ba3N2, resp.) under nitrogen. The crystal structures were determined by single crystal X-ray diffraction: Ba3[MoN4] (Ba3[WN4]): Pbca; Z = 8; a = 1083.9(3) pm (1091.8(3) pm), b = 1030.3(3) pm (1037.5(3) pm), c = 1202.9(3) pm (1209.2(4) pm). The structures contain isolated tetrahedral anions [MN4]6- (M = Mo, W) which are arranged in form of slightly distorted hexagonal layers and which are stacked along [010] with the sequence (···AB···). Two of the three Ba atoms are situated between, the third one is placed within the layers of [MN4]-groups. In this way the structures can be derived from the Na3As structure type.

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Comparative Structural Studies on Three-Coordinate Copper(I) Halide Complexes With Tertiary Phosphines. Crystal Structures of [(PPh2Mes)CuX]2 and [(PPhMes2)CuX]2 (Mes = Mesityl X = Cl, Br, I)

Australian Journal of Chemistry ◽

10.1071/ch9921155 ◽

1992 ◽

Vol 45 (7) ◽

pp. 1155 ◽

Cited By ~ 11

Author(s):

GA Bowmaker ◽

D Camp ◽

RD Hart ◽

PC Healy ◽

BW Skelton ◽

...

Keyword(s):

Single Crystal ◽

Crystal Structures ◽

Copper Atom ◽

Structural Studies ◽

Coordination Environment ◽

X Ray ◽

Tertiary Phosphines ◽

Structure Determinations ◽

Halide Complexes ◽

The Subject

The 1 : 1 complexes of the substituted triphenylphosphine ligands mesityldiphenylphosphine and dimesitylphenylphosphine with copper(1) chloride, bromide and iodide have been the subject of single-crystal X-ray structure determinations at 295 K. All six complexes crystallize as air-stable dimeric molecules, [(PPh2Mes)CuX]2 and [ (PPhMes2)CUX]2 with each copper atom in a distorted trigonal PCuX2. coordination environment. Crystals of [(PPh2Mes)CuCl]2 (1) are monoclinic, P21/n, a 9.961(3), b 18.687(6), c 11.009(7) Ǻ, β 114.63(4)°; R was 0.049 for 2450 'observed' reflections. [(PPh2Mes)CuBrI2 (2) is monoclinic, P21/n, a 9.939(2), b 18.832(6), c 11.238(6) Ǻ, β 115.36(3)°; R was 0.046 for 1803 'observed' reflections. [(PPh2Mes)CuI]2.4/3 C6H6 (3) is rhornbohedral, R3, a 36.877(8), c 9.047(5) A; R was 0.039 for 2537 'observed' reflections. Crystals of [(PPhMes2)CuCl]2.2MeCN (4) are triclinic, Pi, a 15.783(7), b 9.570(4), c 8.914(4) Ǻ, α 72.43(3), β 76.37(3), γ 74.03(3)°; R was 0.045 for 3341 'observed' reflections. [(PPhMes2)CuBr]2.3C6H6 (5) is monoclinic, C2/c, a 9.694(6), b 30.15(2), c 20.66(2) Ǻ, β 98.00(7)°; R was 0.047 for 2117 'observed' reflections. [(PPhMes2)CuI]2.2MeCN (6) is orthorhombic, PP1nb, a 11.694(8), b 14.77(1), c 29.76(3) Ǻ; R was 0.049 for 3447 'observed' reflections. Cu-P bond lengths are: 2.196(2) A (1); 2.198(3) Ǻ (2); 2.222(5) and 2.226(5) Ǻ (3); 2.202(1) Ǻ (4); 2.197(3) A (5); 2.201(4) and 2.264(5) Ǻ (6). The geometries of the LCuX2 and CuX2Cu units are compared with data reported for other monomeric and dimeric compounds for both phosphorus- and nitrogen-based ligands L.

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Lewis-Base Adducts of Group 1B Metal(I) Compounds. XXI The Crystal and Molecular Structures of the Unsolvated Forms of Dibromotris(triphenylphosphine)dicopper(I) and 'step' Tetrabromotetrakis(triphenyl-phosphine)tetracopper(I)

Australian Journal of Chemistry ◽

10.1071/ch9851243 ◽

1985 ◽

Vol 38 (8) ◽

pp. 1243 ◽

Cited By ~ 14

Author(s):

JC Dyason ◽

LM Engelhardt ◽

C Pakawatchai ◽

PC Healy ◽

AH White

Keyword(s):

Single Crystal ◽

Crystal Structures ◽

Molecular Structures ◽

Lewis Base ◽

Crystal Data ◽

X Ray Diffraction ◽

Triphenyl Phosphine ◽

X Ray ◽

Crystal And Molecular Structures

The crystal structures of the title compounds have been determined by single-crystal X-ray diffraction methods at 295 K. Crystal data for (PPh3)2CuBr2Cu(PPh3) (1) show that the crystals are iso-morphous with the previously studied chloro analogue, being monoclinic, P21/c, a 19.390(8), b 9.912(5), c 26.979(9) Ǻ, β 112,33(3)°; R 0.043 for No 3444. Cu( trigonal )- P;Br respectively are 2.191(3); 2.409(2), 2.364(2) Ǻ. Cu(tetrahedral)- P;Br respectively are 2.241(3), 2.249(3); 2.550(2), 2.571(2) Ǻ. Crystals of 'step' [PPh3CuBr]4 (2) are isomorphous with the solvated bromo and unsolvated iodo analogues, being monoclinic, C2/c, a 25.687(10), b 16.084(7), c 17.815(9) Ǻ, β 110.92(3)°; R 0.072 for No 3055. Cu( trigonal )- P;Br respectively are 2.206(5); 2.371(3), 2.427(2) Ǻ. Cu(tetrahedral)- P;Br are 2.207(4); 2.446(2), 2.676(3), 2.515(3) Ǻ.

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Synthesis and structure of macrocyclic dinickel(II) complex with 5-(4-pyridyl)tetrazolate as coligand

Journal of the Belarusian State University Chemistry ◽

10.33581/2520-257x-2021-2-3-10 ◽

2021 ◽

pp. 3-10

Author(s):

Sergei V. Voitekhovich ◽

Berthold Kersting ◽

Oleg A. Ivashkevich

Keyword(s):

Ir Spectroscopy ◽

Single Crystal ◽

Elemental Analysis ◽

Dinuclear Complex ◽

X Ray Diffraction ◽

X Ray

The dinuclear nickel(II) complex [Ni2LmClO4] + , where Lm represents a 24-membered macrocyclic hexaaza-dithiophenolate ligand, reacts with 5-(4-pyridyl)tetrazole (PyrCN4H) to give the dinuclear complex [Ni2Lm(PyrCN4)]+ . The new complex was both isolated as perchlorate or tetraphenylborate salts and characterised by elemental analysis and IR spectroscopy. The structure of [Ni2Lm(PyrCN4)]BPh4 ⋅ MeCN was determined by single crystal X-ray diffraction, showing that tetrazolate units are in a N2,N3-bridging mode to generate dioctahedral N3Ni(µ-S)2(µ-N4CPyr)NiN3 core.

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Crystal structures of two novel iron isocyanides from the reaction of 2,6-dimethylphenyl isocyanide, CNXyl, with bis(anthracene)ferrate(−1)

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s205698902101313x ◽

2022 ◽

Vol 78 (1) ◽

Author(s):

William W. Brennessel ◽

John E. Ellis

Keyword(s):

Crystal Structure ◽

Single Crystal ◽

Crystal Structures ◽

Tridentate Ligand ◽

Reductive Cyclization ◽

X Ray Diffraction ◽

X Ray

The reaction of the [K(18-crown-6)(thf)2]1+ (thf is tetrahydrofuran) salt of bis(anthracene)ferrate(−1), or [Fe(C14H10)2]−, with 2,6-dimethylphenyl isocyanide (CNXyl) in thf resulted in the formation of two new iron isocyanide complexes, namely, [(1,2,3,4-η)-anthracene]tris(2,6-dimethylphenyl isocyanide)iron, [Fe(C14H10)(C9H9N)3] or [Fe(1,2,3,4-η-C14H10)(CNXyl)3], and {5,6-bis(2,6-dimethylanilino)-3-(2,6-dimethylphenyl)-1,2,7-tris[(2,6-dimethylphenyl)imino]-3-azoniahept-3-ene-1,4,7-triido}tris(2,6-dimethylphenyl isocyanide)iron tetrahydrofuran disolvate, [Fe(C54H56N6)(C9H9N)3]·2C4H8O or [Fe(C54H56N6)(CNXyl)3]·2C4H8O, which were characterized by single-crystal X-ray diffraction. The former is likely an intermediate along the path to the known homoleptic [Fe(CNXyl)5], while the latter contains a tridentate ligand that is formed from the `coupling' of six CNXyl ligands. A third crystal structure from this reaction, (7-methylindol-1-ido-κN)(1,4,7,10,13,16-hexaoxacyclooctadecane-κ6 O)potassium, [K(C9H8N)(C12H24O6)] or [K(C9H8N)(18-crown-6)], contains a 7-methylindol-1-ide anion, in which one CNXyl ligand has shed a proton during its reductive cyclization.

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Die neuen Oxobismutate(III) Cs6Bi4O9, K9Bi5O13 und A2Bi4O7 (A = Rb, Cs) / The New Oxobismutates(III) Cs6Bi4O9, K9Bi5O13 and A2Bi4O7 (A = Rb, Cs)

Zeitschrift für Naturforschung B ◽

10.1515/znb-2002-1003 ◽

2002 ◽

Vol 57 (10) ◽

pp. 1090-1100

Author(s):

Franziska Emmerling ◽

Caroline Röhr

Keyword(s):

Single Crystal ◽

Crystal Structures ◽

Alkali Metals ◽

Mixed Valence ◽

Three Dimensional ◽

X Ray Diffraction ◽

X Ray ◽

Trigonal Bipyramidal ◽

Mixed Valence Compound

AbstractThe title compounds were synthesized at a temperature of 700 °C via oxidation of elemental Bi with the hyperoxides AO2 or via reaction of the elemental alkali metals A with Bi2O3. Their crystal structures have been determined by single crystal x-ray diffraction. They are dominated by two possible surroundings of Bi by O, the ψ-trigonal-bipyramidal three (B) and the ψ-tetrahedral four (T) coordination. Cs6Bi4O9 (triclinic, spacegroup P1̄, a = 813.82(12), b = 991.60(14), c = 1213.83(18) pm, α = 103.658(2), β = 93.694(3), γ = 91.662(3)°, Z = 2) contains centrosymmetric chain segmentes [Bi8O18]12- with six three- (T) and two four-coordinated (B) Bi(III) centers. K9Bi5O13 (monoclinic, spacegroup P21/c, a = 1510.98(14), b = 567.59(5), c = 2685.6(2) pm, β = 111.190(2)°, Z = 4) is a mixed valence compound with isolated [BivO4]3- tetrahedra and chains [BiIII4O9]6- of two T and two B coordinated Bi. In the compounds A2Bi4O7 (A = Rb/Cs: monoclinic, C2/c, a = 2037.0(3) / 2130.6(12), b = 1285.5(2) / 1301.9(7), c = 1566.6(2) / 1605.6(9) pm, β = 94.783(3) / 95.725(9)°, Z = 8) ribbons [Bi4O6O2/2]2- are formed, which are condensed to form a three-dimensional framework.

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