Synthesis, Characterization and Crystal Structure of [Tetra-μ3-iodotetrakis{1'-(diphenylphosphino)ferrocenecarboxylic Acid-P}tetracopper(I)]-Acetic Acid (1 : 2)

[img]PDF - Authorized users only
Language: English
83Kb
Title:Synthesis, Characterization and Crystal Structure of [Tetra-μ3-iodotetrakis{1'-(diphenylphosphino)ferrocenecarboxylic Acid-P}tetracopper(I)]-Acetic Acid (1 : 2)
Creators:
Štěpnička, Petr
Gyepes, Róbert
Podlaha, Jaroslav
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 63, 1, pp. 64-74
Uncontrolled Keywords:Heterocubanes, Sandwich complexes, X-Ray structure, Copper(I) complexes

Abstract

The title compound was prepared by the reaction of 1'-(diphenylphosphino)ferrocenecarboxylic acid with copper(I) iodide in acetic acid. It has the tetrameric structure of the heterocubane type and all four monomeric units are crystallographically independent. The central Cu<sub>4</sub>I<sub>4</sub> core is severely distorted from the <i>O</i><sub>h</sub> symmetry as a consequence of disparate radii of the atoms; however, this does not lead to transformation of the core into a stepped arrangement, the feature otherwise common for similar tetrameric structures. The ligand behaves as a monodentate phosphine and completes the approximately tetrahedral coordination polyhedron around copper(I). The carboxyl groups remain undissociated and uncoordinated but participate in intermolecular hydrogen bonding. Two carboxyl groups link the molecules of the tetramer into a zig-zag chain; the remaining two are bonded to molecules of solvating acetic acid which act as spacers between the chains. As expected, the geometry of the flexible ligand is remarkably influenced by the hydrogen bonding, the main conformation changes taking place at the P-C bonds and in the mutual arrangement of the cyclopentadienyl rings.

Title:Synthesis, Characterization and Crystal Structure of [Tetra-μ3-iodotetrakis{1'-(diphenylphosphino)ferrocenecarboxylic Acid-P}tetracopper(I)]-Acetic Acid (1 : 2)
Creators:
Štěpnička, Petr
Gyepes, Róbert
Podlaha, Jaroslav
Uncontrolled Keywords:Heterocubanes, Sandwich complexes, X-Ray structure, Copper(I) complexes
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:63
Number:1
Page Range:pp. 64-74
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19980064UNSPECIFIED
ID Code:1274
Item Type:Article
Deposited On:06 Feb 2009 17:08
Last Modified:06 Feb 2009 16:08

Citation

Štěpnička, Petr; Gyepes, Róbert; Podlaha, Jaroslav (1998) Synthesis, Characterization and Crystal Structure of [Tetra-μ3-iodotetrakis{1'-(diphenylphosphino)ferrocenecarboxylic Acid-P}tetracopper(I)]-Acetic Acid (1 : 2). Collection of Czechoslovak Chemical Communications, 63 (1). pp. 64-74. ISSN 0010-0765

Repository Staff Only: item control page