Isodicyclopentadienes. 35. Bis(isodicyclopentadienyl) complexes of the group 4 transition metals. Stereoselective synthesis and crystal structures of the titanocene and zirconocene dichloride derivatives

1987 ◽  
Vol 6 (1) ◽  
pp. 15-19 ◽  
Author(s):  
Judith C. Gallucci ◽  
Bernard. Gautheron ◽  
Melinda. Gugelchuk ◽  
Philippe. Meunier ◽  
Leo A. Paquette
Keyword(s):  
Transition Metals ◽  
Crystal Structures ◽  
Stereoselective Synthesis ◽  
Zirconocene Dichloride ◽  
Group 4

scholarly journals Intermolecular interaction energies in transition metal coordination compounds

CrystEngComm ◽  
2015 ◽  
Vol 17 (48) ◽  
pp. 9300-9310 ◽  
Author(s):  
Andrew G. P. Maloney ◽  
Peter A. Wood ◽  
Simon Parsons
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Crystal Structures ◽  
Intermolecular Interaction ◽  
Coordination Compounds ◽  
Metal Coordination ◽  
Interaction Energies

The PIXEL method has been parameterised and validated for transition metals, extending its applicability from ~40% to ~85% of all published crystal structures.

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

1991 ◽  
Vol 46 (5) ◽  
pp. 566-572 ◽  
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.

Coordination of β-Ketoimine-Derived Ligands at Main Group and Transition Metals

2015 ◽  
Vol 68 (4) ◽  
pp. 641 ◽  
Author(s):  
Struan J. W. Cummins ◽  
H. Putri Fraser ◽  
J. Robin Fulton ◽  
Martyn P. Coles ◽  
Christopher M. Fitchett
Keyword(s):  
Transition Metals ◽  
Oxygen Atom ◽  
Crystal Structures ◽  
Main Group ◽  
Neutral Form ◽  
Tertiary Butyl ◽  
A Minor ◽  
Gallium Compounds

The β-ketoimine HC[MeC(O)][MeC(NHt-Bu)] (1H) (Me = methyl) was used as a ligand in the synthesis of organo-aluminium and gallium compounds. With Al, the NH functionality was deprotonated to form the N,O-chelating β-ketoiminate ligand in Al{HC[MeC(O)][MeC(Nt-Bu)]}Me2 (3) (t-Bu = tertiary butyl), whereas the neutral form coordinated to trimethylgallium via the oxygen atom to form the adduct GaMe3·{HC[MeC(O)][MeC(NHt-Bu)]} (4). Reaction of 1H with Ar†NH2 (Ar† = 2-t-BuC6H4) afforded the new N-aryl β-ketoimine HC[MeC(O)][MeC(NHAr†)] (2H), which reacted with Pd(OAc)2 (OAc = acetate = CH3CO2–) to afford the heteroleptic dimer {Pd[HC(MeC(O))(MeC(NAr†))](μ-OAc)}2 ([5]2). The homoleptic bis(β-ketoiminate) Pd{HC[MeC(O)][MeC(NAr†)]}2 (6) was isolated as a minor product of this reaction. The crystal structures of compounds 3, 4, [5]2, and 6 are reported.

Synthesis of Permethylindenyl Complexes of the Early Transition Metals. Crystal Structures of Ti(.eta.5-C9Me7)Cl3 and Zr(.eta.5-C9Me7)2Cl2

1994 ◽  
Vol 13 (12) ◽  
pp. 4689-4694 ◽  
Author(s):  
Dermot O'Hare ◽  
Vince Murphy ◽  
Gary M. Diamond ◽  
Polly Arnold ◽  
Philip Mountford
Keyword(s):  
Transition Metals ◽  
Crystal Structures ◽  
Early Transition
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