A double sandwich silver(I) polymer with 1,1′-bis(diethyldithiocarbamate)-ferrocene

Abstract

The polymeric complex [Ag{Fc(S 2 CNEt 2 ) 2 }] n [ClO 4 ] n , in which the silver centres are bonded to two sulfur atoms of different ferrocene moieties and also to the cyclopentadienyl rings in an h 2 fashion, is reported.

The Role of Secondary Interactions in Group 11 Metal Complexes Containing the Ferrocene Ligand FcCH2NHpyMe in Supramolecular Structures

“…The gold atom Au (1) is located close to and with short contacts to the C(1)ϪC (2) bond of the cyclopentadienyl group [distances to C(1) and C(2): 3.150 and 3.357 Å ] indicating a weak η 2 interaction with the Cp ring in a similar manner as has already been observed in other gold and silver complexes with ferrocene derivatives. [10,11] In the lattice there are several O···H interactions involving the oxygen atoms of the perchlorate anion and the protons of the phenyl and cyclopentadienyl moieties. These contacts are around 2.6 Å and are mostly of such a linearity as to be considered hydrogen bonds.…”

The First Silver(I) Side‐On η2‐Coordination Network Formed by Self‐Assembly of Bis(pyrrol‐2‐ylmethylene)hydrazine

“…[1,2] Multidimensional networks based on ligands with a rigid bridging spacer [3] or a flexible bridging spacer [4] have been reported. Coordination networks containing π-sandwiched silver() complexes with polycyclic aromatic compounds, [5] cyclopentadienyl rings, [6] and phenyl rings, [7] have been described. Small π-sandwiched silver() complexes have been reported recently [8] in which the silver centers are doubly sandwiched.…”

Gold(I) and Gold(III) Complexes with the 1,1′-Bis(diethyldithiocarbamate)ferrocene Ligand

“…This is also reflected in the S-Cp-Cp-S angles, which are À 1778, 1528, 1538; the dithiocarbamate groups are thus pseudoantiperiplanar across the ferrocene ring system, in contrast with the pseudo-gauche arrangement in the free ligand (see above). More importantly, the SÀAuÀCl side chains adopt quite different positions; in molecules 1 and 2 the Au atoms lie above the ipso-C atoms of the Cp rings in a manner reminiscent of the above-mentioned silver polymer [9] (Au1´´´C1 2.98 , Au2´´´C6 3.06 , Au1'´´´C1' 3.08 , Au2'´´´C6' 3.08 ), whereas in molecule 3 ( Figure 3) the side chain is rotated so that the Au atoms lie between the Cp rings, displaced sideways (Au1''´´´Fe'' 5.49 , Au2''´´´Fe'' 4.83 ). The torsion angles mainly responsible for this are C1-S2-C11-S1 and C6-S4-C16-S3, which are À 58, 18; 248, 78; 1528, À 1188 in molecules 1 ± 3 respectively.…”

“…As part of our investigations of ferrocene derivatives [4±8] we have synthesised a polymeric chain complex of this ligand with silver, in which the silver atom is bound to the dithiocarbamate unit and also, in a h 2 fashion, to the cyclopentadienyl ring. [9] Here we report further complexation studies of the ligand to gold(i) or gold(iii) centres, together with the crystal structures of the ligand 1 and the gold(i) complex [Au 2 Cl 2 {Fc(S 2 CNEt 2 ) 2 }] (2). The structure of the gold compound is unprecedented because the Au atoms are bound to the cyclopentadienyl rings through the p system, similar to the situation in the polymeric silver derivative.…”