摘要:
Reactions of the clusters Os-3(mu-H)(2)(mu(3)-1-OC10H6)(CO)(9), 1, and Os-3(mu-H)(mu-2-OC10H7)(CO)(10), 2, with the group 15 ligands EPh3 (E = P, As, Sb) generally afforded the mono- and, or disubstituted derivatives. These derivatives tend to decompose during chromatographic separations on silica gel; thus one of the decomposition products from the reaction of 1 with PPh3 has been identified as Os(H)(2)(CO)(2)(PPh3)(2), 3. The molecular structures of 3, as well as the derivatives Os-3(mu-H)(2)(mu(3)-1-OC10H6)(CO)(8)(AsPh3), 4, Os-3(mu-H)(2)(mu(3)-1-OC10H6)(CO)(7)(SbPh3)(2), 5c, Os-3(mu-H)(mu-2-OC10H7)(CO)(8)(AsPh3)(2), 7b, and Os-3(mu-H)(mu-2-OC10H7)(CO)(8)(SbPh3)(2), 7c, have been determined by single crystal X-ray diffraction studies. (C) 2003 Elsevier B.V. All rights reserved.