TY - JOUR
T1 - Synthesis and molecular structure of the borido cluster Fe4(CO)12BHAu2{AsPh3}2 and an investigation of the electrochemistry of Fe4(CO)12BHAu2L2, L AsPh3 or PPh3
AU - Housecroft, Catherine E.
AU - Shongwe, Musa S.
AU - Rheingold, Arnold L.
AU - Zanello, Piero
N1 - Funding Information:
We thank the Royal Society for a 1983 University Research Fellowship (to C.E.H.) and the Cambridge Commonwealth Trust and Tate and Lyle Corp. (to M.S.S.) N.S.F. is acknowledged for a grant towards the purchase of a diffractometer at the University of Delaware.
PY - 1991
Y1 - 1991
N2 - The synthesis and characterisation by X-ray crystallography of Fe4(CO)12BHAu2{AsPh3}2 are reported. Fe4(CO)12BHAu2{AsPh3}2 is isostructural with its phosphine analogue Fe4(CO)12-BHAu2{PPh3}2 and possesses a central Fe4-butterfly framework with a semi-interstitial boron atom and two asymmetrically positioned AuAsPh3 groups, one bridging and FewingB edge and one interacting with an FehingeB edge. Changing the gold(I) substituent from PPh3 is sufficient to cause a significant difference in the redox behaviour of the auraferraborane clusters. Each of Fe4(CO)12BHAu2{AsPh3}2 and Fe4(CO)12BHAu3{PPh3}2 is subject to a one-electron reduction and a one-electron oxidation, and the phosphine derivative can be oxidised further to the dication. The redox congeners are short lived, but the degradation products can regenerate the starting clusters by reversing the redox pattern.
AB - The synthesis and characterisation by X-ray crystallography of Fe4(CO)12BHAu2{AsPh3}2 are reported. Fe4(CO)12BHAu2{AsPh3}2 is isostructural with its phosphine analogue Fe4(CO)12-BHAu2{PPh3}2 and possesses a central Fe4-butterfly framework with a semi-interstitial boron atom and two asymmetrically positioned AuAsPh3 groups, one bridging and FewingB edge and one interacting with an FehingeB edge. Changing the gold(I) substituent from PPh3 is sufficient to cause a significant difference in the redox behaviour of the auraferraborane clusters. Each of Fe4(CO)12BHAu2{AsPh3}2 and Fe4(CO)12BHAu3{PPh3}2 is subject to a one-electron reduction and a one-electron oxidation, and the phosphine derivative can be oxidised further to the dication. The redox congeners are short lived, but the degradation products can regenerate the starting clusters by reversing the redox pattern.
UR - http://www.scopus.com/inward/record.url?scp=0007930818&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0007930818&partnerID=8YFLogxK
U2 - 10.1016/0022-328X(91)80096-3
DO - 10.1016/0022-328X(91)80096-3
M3 - Article
AN - SCOPUS:0007930818
SN - 0022-328X
VL - 408
SP - 7
EP - 18
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1
ER -