The crystal structures of compounds involving metal-metal bonding. I. Gd8Cl12. II Te4(AlCl4)

1970 ◽  
Author(s):  
Donald Arthur Lokken
Keyword(s):  
Crystal Structures ◽  
Metal Bonding ◽  
Metal Metal

NOTIZEN. Zur Reaktion von PhSSiMe3 mit [CoCl2(PPh3)2] und (NBu4)[CoCl3(PPh3)]. Die Kristallstrukturen von (NBu4)2[Co4(SPh)6Cl4], [Co4(SPh)6Cl2(POPh3)(PPh3)] und (NBu4) [Mn2(SPh)3(CO)6] / Reaction of PhSSiMe3 with [CoCl2(PPh3)2] and (NBu4)[CoCl3(PPh3)]. The Crystal Structures of (NBu4)2[Co4(SPh)6Cl4], [Co4(SPh)6CL(POPh3)(PPh3)] and (NBu4)[Mn2(SPh)3(CO)6]

1987 ◽  
Vol 42 (9) ◽  
pp. 1207-1212 ◽  
Author(s):  
Dieter Fenske ◽  
J. Meyer ◽  
K. Merzweiler
Keyword(s):  
Crystal Structures ◽  
Toluene Solution ◽  
Dinuclear Complex ◽  
Metal Bonding ◽  
Metal Metal

(NBu4)2[Co4(SPh)6Cl4] (1) and [Co4(SPh)6CU(PPh3)2] (2) are prepared by the reaction of (NBu4)[CoCl3(PPh3)] and [CoCl2(PPh3)2] with PhSSiMe3 in toluene solution. The overall description of the Co4S6Cl4 core is that o f a nearly regular Co4-tetrahedron inscribed in an irregular octahedron of the bridging S atoms resulting in an “adamantane” type cage. 1 reacts with Na[Mn(CO)5] to form the dinuclear complex (NBu4)[Mn2(SPh)3(CO)6] (4). Each Mn atom is bound to three CO and three μ2-SPh ligands. The Mn-Mn contact (318.5 pm) does not indicate metal-metal bonding.

Kristallstrukturen und elektronische Eigenschaften von Ge1/3NbS2 und Ge1/4NbS2 / Crystal Structures and Electronic Properties of Ge1/3NbS2 and Ge1/4NbS2

2002 ◽  
Vol 57 (12) ◽  
pp. 1367-1374 ◽  
Author(s):  
Regina Pocha ◽  
Dirk Johrendt
Keyword(s):  
Band Structure ◽  
Single Crystal ◽  
Single Crystals ◽  
Crystal Structures ◽  
Chemical Transport ◽  
X Ray ◽  
Metal Bonding ◽  
Band Structure Calculations ◽  
Metal Metal ◽  
Structure Calculations

Single crystals of the intercalation compounds Ge1/3NbS2 andGe1/4NbS2 have been prepared by heating of the elements at 1073 K and by chemical transport with iodine at 923 to 1073 K. Their crystal structures were determined by single crystal X-ray methods.Ge1/3NbS2 (P63/mcm, a=5.767(1), c=13.518(3) Å, Z = 6) crystallizes with a superstructureof 2H-NbS2, characterized by layers of edge-sharing NbS6 trigonal prisms. The Ge atoms in the octahedral voids of the van der Waals gap are sixfold coordinated by sulfur. The NbS2-sublattice of Ge1/4NbS2 (P63/mmc, a = 3.339(1), c = 37.326(7) Å , Z = 6) represents a new 6H-polymorph. Herein, the Ge atoms are located either in the centers of the octahedral voids (c. n. = 6) or shifted from this position along [001] (c. n. = 3 + 3). The unusual electronic state and the bonding situation of germanium in the van der Waal gaps of NbS2 and the metal-metal bonding are studied in detail by using DFT band structure calculations.

Metal-metal bonding and mixed-valent tantalum in La2Ta3S2O8

1992 ◽  
Vol 98 (1) ◽  
pp. 82-89 ◽  
Author(s):  
Theodore D. Brennan ◽  
James A. Ibers
Keyword(s):  
Metal Bonding ◽  
Metal Metal

MC4:  A Hypothetical Three-Dimensional Organometallic Net with Metal−Metal Bonding and Polyacetylene Substructures

1996 ◽  
Vol 118 (42) ◽  
pp. 10294-10302 ◽  
Author(s):  
Norman Goldberg ◽  
Huang Tang ◽  
Nancy Kroohs ◽  
Roald Hoffmann
Keyword(s):  
Three Dimensional ◽  
Metal Bonding ◽  
Metal Metal

Metal-Metal Bonding in Biology: EXAFS Evidence for a 2.5 .ANG. Copper-Copper Bond in the CuA Center of Cytochrome Oxidase

Biochemistry ◽  
1994 ◽  
Vol 33 (34) ◽  
pp. 10401-10407 ◽  
Author(s):  
Ninian J. Blackburn ◽  
Mary E. Barr ◽  
William H. Woodruff ◽  
John van der Ooost ◽  
Simon de Vries
Keyword(s):  
Cytochrome Oxidase ◽  
Metal Bonding ◽  
Metal Metal
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