Effect of polyfluorination on ring inversion barriers for cyclooctatetraenes. Transition-metal compounds of unsaturated, polyfluorinated cycloaliphatics. Crystal and molecular structures of [Fe(.eta.-C5R5)(.eta.1-heptafluorocycloocta-1,3,5,7-tetraenyl)(CO)2] (R = H, Me), {[Fe(.eta.-C5H5)(CO)2]2(.mu.2-(1.eta.,5.eta.)-hexafluorocycloocta-1,3,5,7-tetraenediyl)], and [Mn((3.eta.)-heptafluorotricyclo[4.2.0.02,5]octa-3,7-dienyl)(CO)5]

1990 ◽  
Vol 9 (10) ◽  
pp. 2732-2745 ◽  
Author(s):  
Russell P. Hughes ◽  
Richard T. Carl ◽  
Stephen J. Doig ◽  
Richard C. Hemond ◽  
Deborah E. Samkoff ◽  
...  
Keyword(s):  
Transition Metal ◽  
Molecular Structures ◽  
Transition Metal Compounds ◽  
Ring Inversion ◽  
Metal Compounds ◽  
Crystal And Molecular Structures

Structural and spectroscopic studies of transition metal nitrite complexes. VIII. Crystal structures and spectra of three pentanuclear species with stoichiometry [Ni5(N-substituted ethane-1,2-diamine)4(OH)2(NO2)8]

1981 ◽  
Vol 34 (10) ◽  
pp. 2139 ◽  
Author(s):  
AJ Finney ◽  
MA Hitchman ◽  
CL Raston ◽  
GL Rowbottom ◽  
AH White
Keyword(s):  
Transition Metal ◽  
Crystal Structures ◽  
General Formula ◽  
Infrared Spectra ◽  
Spectroscopic Studies ◽  
Molecular Structures ◽  
Structural Variations ◽  
Crystal And Molecular Structures

The preparation of a series of novel compounds of general formula [Ni5L4(NO2)8(OH)2] formed by ethane-1,2-diamine or one of five N-substituted ethane-1,2-diamines (L) is described. The crystal and molecular structures of the ethane-1,2-diamine, N,N'-diethylethane-1,2-diamine and N,N-dimethylethane-1,2-diamine complexes are reported. Each compound contains a planar, pentameric arrangement of nickel(II) ions, linked by bridging hydroxide and nitrite ligands. The details of the nitrite bridges differ among the complexes, causing differences in their electronic and infrared spectra. The structural variations are probably caused by the differing steric requirements of the amine substituents.

Superconductivity of some transition metal compounds

1980 ◽  
Vol 34 (1) ◽  
pp. 45-50 ◽  
Author(s):  
A.Nørlund Christensen ◽  
S.E. Rasmussen ◽  
G. Thirup
Keyword(s):  
Transition Metal ◽  
Transition Metal Compounds ◽  
Metal Compounds
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