ChemInform Abstract: CLUSTER CHEMISTRY. PART 20. PREPARATION, X-RAY CRYSTAL STRUCTURES, AND SOME REACTIONS OF 3-(TERT-BUTYL ISOCYANIDE)UNDECARBONYL- AND μ3-η2-(TERT-BUTYL ISOCYANIDE)NONACARBONYL-TRIANGULO-TRIIRON

1984 ◽  
Vol 15 (6) ◽  
Author(s):  
M. I. BRUCE ◽  
T. W. HAMBLEY ◽  
B. K. NICHOLSON
Keyword(s):  
Crystal Structures ◽  
Cluster Chemistry ◽  
X Ray ◽  
Tert Butyl

scholarly journals Azo-linked corner porphyrin systems: synthesis, crystal structures and spectroscopic investigation

2010 ◽  
Vol 14 (06) ◽  
pp. 481-493 ◽  
Author(s):  
Bruno Bašić ◽  
John C. McMurtrie ◽  
Dennis P. Arnold
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Spectroscopic Investigation ◽  
The Other ◽  
X Ray ◽  
Tert Butyl ◽  
Dinitro Derivative

1,2-bis[10,15-di(3,5-di-tert-butyl)phenylporphyrinatonickel(II)-5-yl]diazene was synthesised via copper-catalyzed coupling of aminated nickel(II) 5,10-diarylporphyrin ("corner porphyrin") and its X-ray crystal structure was determined. Two different crystals yielded different structures, one with the free meso-positions in a trans-like orientation, and the other with a cis-like disposition. The free meso-positions of the obtained dimer have been further functionalized while the synthesis of a zinc analog has so far been unsuccessful. The X-ray crystal structure of the dinitro derivative of the dinickel(II) azoporphyrin was determined, and the structure showed a cis-like disposition of the nitro groups.

1,1′-Di(tert-butyl)metallocenium Cations. The X-Ray Crystal Structures of [M(C5H4tBu)2]PF6 (M = Fe, Co) and [Co (C5H4t Bu)2]2CoCl4

2000 ◽  
Vol 55 (9) ◽  
pp. 814-820 ◽  
Author(s):  
Max Herberhold ◽  
Yan-Xiang Cheng ◽  
Guo-Xin Jin ◽  
Wolfgang Milius
Keyword(s):  
Crystal Structures ◽  
X Ray ◽  
Tert Butyl ◽  
Transoid Conformation

The hexafluorophosphate salts [Fe(C5H4tBu)2]PF6 (1) and [Co(C5 H4 tBu)2]PF6 (2) crystallize in isotypic structures with centrosymmetric cations which have a staggered (transoid) conformation of the exactly parallel ring ligands (conformational angle τ = 180°). The tetrachlorocobaltate salt, [Co(C5H4tBu)2 ]2 CoCl4 (3), contains one almost eclipsed (τ = 140.4°) and one almost staggered (τ = 101.4°) cobaltocenium cation; in both cases, the cyclopentadienyl ring planes are slightly inclined (by α = 5.4° and 4.1°, respectively) to give more room to the tert-butyl substituents which are bent away from the metal in all three complexes 1 - 3

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