Benzenedicarbonyl and benzenetricarbonyl linker pyrazolyl complexes of palladium(ii): synthesis, X-ray structures and evaluation as ethylene polymerisation catalystsElectronic supplementary information (ESI) available: molecular structures and bond lengths and angles for L2, L3, L6 and 2. See http://www.rsc.org/suppdata/dt/b2/b208376k/

2003 ◽  
pp. 715-722 ◽  
Author(s):  
Ilia A. Guzei ◽  
Kelin Li ◽  
Galina A. Bikzhanova ◽  
James Darkwa ◽  
Selwyn F. Mapolie
Keyword(s):  
Molecular Structures ◽  
Supplementary Information ◽  
X Ray ◽  
Bond Lengths ◽  
Ethylene Polymerisation

The Crystal and Molecular Structures of Two Modifications of cis-Dichloro-mer-tris-(dimethylphenylphosphine)hydridoiridium(III)

1988 ◽  
Vol 41 (3) ◽  
pp. 283 ◽  
Author(s):  
GB Robertson ◽  
PA Tucker
Keyword(s):  
Heavy Atom ◽  
Molecular Structures ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
X Ray ◽  
Bond Lengths ◽  
Metal Ligand ◽  
Ligand Bond

The structures of two crystalline modifications of mer -(Pme2Ph)3H-cis-Cl2IrIII, (1), have been determined from single-crystal X-ray diffraction data. Modification (A) is monoclinic, space group P21/c with a 12.635(1), b 30.605(3), c 14.992(2)Ǻ, β 110.01(2)° and Z = 8. Modification (B) is orthorhombic, space group Pbca with a 27.646(3), b 11.366(1), c 17.252(2)Ǻ and Z = 8. The structures were solved by conventional heavy atom techniques and refined by full-matrix least- squares analyses to conventional R values of 0.037 [(A), 8845 independent reflections] and 0.028 [(B), 5291 independent reflections]. Important bond lengths [Ǻ] are Ir -P(trans to Cl ) 2.249(1) av. (A) and 2.234(1) (B), Ir -P(trans to PMe2Ph) 2.339(2) av. (A) and 2.344(1), 2.352(1) (B), Ir-Cl (trans to H) 2.492(2), 2.518(2) (A) and 2.503(1) (B) and Ir-Cl (trans to PMe2Ph)2.452(2) av. (A) and 2.449(1)(B). Differences in chemically equivalent metal- ligand bond lengths emphasize the importance of non-bonded contacts in determining those lengths.

The Crystal and Molecular Structures of Bis(diethyldithiocarbamato)platinum(II) and Bis[di(2-hydroxyethyl)dithiocarbamato]platinum(II)

1992 ◽  
Vol 45 (2) ◽  
pp. 429 ◽  
Author(s):  
AT Baker ◽  
MT Emett
Keyword(s):  
Single Crystal ◽  
Bond Length ◽  
Molecular Structures ◽  
Monoclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
Bond Lengths ◽  
Crystal And Molecular Structures

The structures of [Pt(S2CN(C2H5)2)2] (1) and [Pt(S2CN(C2H4OH)2)2] (2) have been determined by single-crystal X-ray diffractometry. Compound (1) crystallizes in the tetragonal space group P42/n, a 16.4692(10),c 6.2160(6) � (Z = 4); R was 0.029 for 1012 observed reflections. Compound (2) is monoclinic, space group Pc, a 6-0663(11), b 1.1784(15), c 12.5740(21) � ,β92.569(8)� (Z = 2); R was 0.019 for 1573 observed reflections. The presence of electron-withdrawing groups in the ligands of (2) appears to have little effect on the Pt-S distances but causes an increase in the C-N bond length, with the C-N bond lengths being significantly different at the 2 σ level.

The crystal and molecular structures of the bispyridine and 1,10-phenanthroline adducts of Bis(ethyl 3-mercaptobut-2-enoato)nickel(II)

1982 ◽  
Vol 35 (2) ◽  
pp. 331 ◽  
Author(s):  
J Sachinidis ◽  
MF Mackay ◽  
MW Grant
Keyword(s):  
Thermodynamic Data ◽  
Molecular Structures ◽  
Space Group ◽  
X Ray ◽  
Bond Lengths ◽  
Crystal And Molecular Structures ◽  
Distorted Octahedral ◽  
In Cis ◽  
Oxygen Atoms

X-ray analyses of monoclinic crystals of the bispyridine and 1,10-phenanthroline adducts of the monothioacetylacetonate complex bis(ethyl 3-mercaptobut-2-enoato)nickel(n), Ni(eosm)2,* have defined their structures. Crystals of the bispyridine adduct Ni(eosm)2,py2, C22H28N2NiO4S2, belong to the space group P21/c with a 8.865(6), b 15.758(4), c 9.136(3)Ǻ, β 109.18(4)°, Z 2. Crystals of the 1,10-phenanthroline adduct Ni(eosm)2,phen, C24H26N2NiO4S2, belong to the space group P21c with a 12.451(2), b 16.949(1), c 15 5921(2) Ǻ, β 130.97(1)°, Z 4. The structures were refined with diffractometer data measured with Cu Ka radiation to R 0.047 (1962 terms) for the bispyridine adduct and R 0.061 (3115 terms) for the phenanthroline adduct. The geometry about the nickel in each complex is distorted octahedral. The molecule of the bispyridine adduct has exact rn symmetry with the two sulfur atoms cis-equatorial and the nitrogen atoms axial. In the phenan- throline adduct, pairs of sulfur, nitrogen and oxygen atoms are in cis configurations. In the bis-pyridine adduct, the Ni-N bond lengths, 2.153(3) and 2.182(4) Ǻ, are significantly longer than those in other bispyridine adducts of nickel(II) species. It is suggested that the long Ni-N distances reflect the relative instability of the bispyridine adduct, and thermodynamic data are presented to support this.

Tetraalky lammonium - tetr achlor oantimonate (III). Struktur und Schwingungsspektren / Tetraalky lammonium Tetrachloroantimonates(III). Structure and Vibrational Spectra

1982 ◽  
Vol 37 (12) ◽  
pp. 1584-1589 ◽  
Author(s):  
U. Ensinger ◽  
W. Schwarz ◽  
A. Schmidt
Keyword(s):  
Vibrational Spectra ◽  
Molecular Structures ◽  
X Ray ◽  
Bond Lengths ◽  
Crystal And Molecular Structures

The crystal and molecular structures of tetraethyl- (1), tetra-η-propyl- (2) and tetra-nbutylammonium tetrachloroantimonate(III) (3) were determined by X-ray analysis. There are discrete Sb4Cl164- (1) and Sb2Cl82- (2 and 3) anions. The Sb-Cl bond lengths vary in the range between 234 and 326 pm, and are explained as in a three centre-four electron situation. The vibrational spectra of the anions are briefly discussed

Kristall- und Molekülstruktur von As2P2S7/ Crystal and Molecular Structure of As2P2S7

1984 ◽  
Vol 39 (8) ◽  
pp. 1088-1091 ◽  
Author(s):  
Wolfgang Hönle ◽  
Claus Wibbelmann ◽  
Wolfgang Brockner
Keyword(s):  
Molecular Structure ◽  
Single Crystal ◽  
Bond Length ◽  
Crystal And Molecular Structure ◽  
Molecular Structures ◽  
X Ray Diffraction ◽  
Group V ◽  
X Ray ◽  
Bond Lengths ◽  
Crystal And Molecular Structures

AbstractThe crystal and molecular structures of As2P2S7 has been determined by single crystal X-ray diffraction (space group V 21/c; Z = 4; a = 1174.6(16) pm; b = 823.9(7) pm; c = 1140.1(10) pm; β - 94.43(9)°; R = 0.073. The molecule is isosteric to P4S7 and possesses C2v symmetry. Mean bond lengths are: d (As-As) = 250.9 pm; d (As-S ) = 225.7 pm; d(P - S) = 208.3 pm and d(P = S) = 193.2 pm. The observed As -As bond length agrees well with spectroscopic results

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