نتایج جستجو برای: octahedral complex

تعداد نتایج: 786895  

2009
Yanfei Li Junshan Sun Shanghua Feng Ruigang Xue Jun Wang

The asymmetric unit of the title compound, [Cu(C(5)H(3)O(3))(2)(C(12)H(8)N(2))(2)(H(2)O)]·0.5CH(3)OH, contains two Cu(II) complex mol-ecules and one methanol solvent mol-ecule with the metal centres in strongly distorted octahedral coordination. The coordinated water mol-ecule is involved in inter-molecular O-H⋯O hydrogen bonding, which links the complex mol-ecules into chains propagating along...

2001
Hassan Keypour Sadegh Salehzadeh R. G. Pritchard R. V. Parish

The asymmetrical tripodal tetraamine ligand N[(CH2)3NH2]2[(CH2)2NH2] (ppe) was condensed with 2-acetylpyridine in the presence of nickel(II) ion. In ethanolwater solution the reaction stops after the first stage of condensation, and a new nickel(II) complex of an acyclic pentadentate (N5) mono Schiff base ligand was obtained. X-ray structure analysis of the resulting complex, [Ni(ppe-py)(H2O)](...

2009
Nirmal Kumar Karan Kai-Ting Chan Hon Man Lee

In the title complex, [Cu(NCS)(2)(C(6)H(8)N(2))(2)], the Cu(II) atom, lying on an inversion center, adopts a Jahn-Teller distorted octahedral CuN(6) coordination geometry. The two bidentate 2-amino-methyl-pyridine ligands are coordinated in a trans fashion, while the two thio-cyanate ligands are at the axial positions and coordinate to the Cu atom in a bent mode with a C-N-Cu angle of 127.49 (1...

Journal: :Crystals 2022

A heteroleptic homotrinuclear complex, [Zn3(valhydr)2(RhB)2(EtOH)2](ClO4)2 (H2valhydr = 1,2-bis(2-hydroxy-3-methoxybenzylidene)hydrazine, RhB rhodamine B), was synthesized and structurally characterized by X-ray diffraction on single crystal. In the centrosymmetric zinc ions are positioned in a linear manner. The external pentacoordinated with distorted square pyramidal stereochemistry, while c...

Journal: :Physical chemistry chemical physics : PCCP 2011
Jelle van Sijl Neil L Allan Gareth R Davies Wim van Westrenen

We examine the structure of the hydrated Ti(IV) complex under both ambient and supercritical conditions using first-principles molecular dynamics. We find that an unanticipated fivefold coordination of Ti(IV) is favoured under ambient conditions, with rapid interconversions between square pyramidal and trigonal bipyramidal structures. At supercritical conditions the Ti coordination increases fr...

2011
Anna Skarżyńska Anna M. Trzeciak Andrzej Gniewek

The title compound, [Re(C(2)H(5)O)Cl(2)O(C(7)H(9)N)(2)], was crystallized from ethanol. The crystal structure of this complex contains a Re(V) atom in a slightly distorted octahedral coordination geometry with pairs of equivalent ligands in trans positions. Adjacent complex mol-ecules are linked by weak C-H⋯Cl hydrogen bonds. The crystal structure is additionally stabilized by π-π stacking inte...

2017
Fenna F van de Watering Jarl Ivar van der Vlugt Wojciech I Dzik Bas de Bruin Joost N H Reek

The tripodal, tetradentate tris(1-(diphenylphosphanyl)-3-methyl-1H-indol-2-yl)phosphane PP3 -ligand 1 stabilizes Ru in the RuII , RuI , and Ru0 oxidation states. The octahedral [(PP3 )RuII (Cl)2 ] (2), distorted trigonal bipyramidal [(PP3 )RuI (Cl)] (3), and trigonal bipyramidal [(PP3 )Ru0 (N2 )] (4) complexes were isolated and characterized by single-crystal X-ray diffraction, NMR, EPR, IR, an...

Journal: :Experimental Mathematics 2008

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