2.4.4.1 Molecular and crystal structures

2005 ◽  
pp. 36-37
Author(s):  
R. Chandrasekaran ◽  
S. Arnott
Keyword(s):  
Crystal Structures ◽  
Molecular And Crystal Structures

Molecular and crystal structures of adducts (Cp2YCl)2L (L = 2THF, DME, 1,4-dioxane)

2007 ◽  
Vol 62 (2) ◽  
pp. 109-111 ◽  
Author(s):  
A. I. Sizov ◽  
T. M. Zvukova ◽  
Z. A. Starikova ◽  
B. M. Bulychev
Keyword(s):  
Crystal Structures ◽  
Molecular And Crystal Structures

scholarly journals Molecular and crystal structures of hydroxyl and ester functionalizedN-heterocyclic carbene complexes of iridium(I)

2015 ◽  
Vol 71 (a1) ◽  
pp. s437-s437
Author(s):  
Merve İzmirli ◽  
Aytaç G. Gökçe ◽  
Derya Gülcemal ◽  
Süleyman Gülcemal ◽  
Muhittin Aygün
Keyword(s):  
Crystal Structures ◽  
Carbene Complexes ◽  
Molecular And Crystal Structures

Molekül- und Kristallstrukturen zweier einkerniger Ruthenium(II)-Komplexe mit dem starken π·Akzeptorliganden 2,2'-Azobis(pyridin) (abpy): [mer-Ru(abpy)3](PF6)2 und Ru(abpy)2Cl2 (ctc-Isomer) / Molecular and Crystal Structures of Two Mononuclear Ruthenium(II) Complexes with the Strongly π Accepting Ligand 2,2'-Azobis(pyridine) (abpy): [mer-Ru(abpy)3](PF6)2 and Ru(abpy)2Cl2 (ctc Isomer)

1995 ◽  
Vol 50 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Jörg Fees ◽  
H.-D. Hausen ◽  
Wolfgang Kaim
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Dihedral Angle ◽  
Intermolecular Interactions ◽  
Chelate Compound ◽  
Steric Repulsion ◽  
Structural Reorganization ◽  
Nitrogen Donor ◽  
Molecular And Crystal Structures ◽  
Halide Ligands

Crystal structure analyses of the title complexes have been carried out in order to establish their molecular configurations. The tris(chelate) complex dication in (1)(PF6)2 exhibits a mer configuration of pyridine and azo nitrogen atoms in an approximately octahedral arrangement at the metal. The dichlororuthenium bis(chelate) compound 2 has the halide ligands and the coordinated azo nitrogen centers in an equatorial cis arrangement whereas two pyridyl groups (one of each abpy ligand) occupy the axial positions. The bond distances from the metal to the nitrogen donor centers are systematically smaller for the stronger π accepting azo functions than for the more basic but less π acidic pyridyl groups, a result which differs from that obtained for Mo(0) and Cu(I) complexes of abpy. All Ru—N distances are shorter in the neutral dichloro complex 2. The non-coordinated pyridyl rings of the potentially tetradentate abpy ligands are tilted into approximate s-cis/(NN-trans)/s-trans positions (dihedral angle ω ≈ 145°) as to minimize steric repulsion, however, they do not coordinate to the metal (dRu-N > 327 pm). While there are no significant intermolecular interactions, the observed conformation implies that considerable structural reorganization is necessary for the formation of oligonuclear complexes.

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