Mi. Bruce et al., ACETYLENIC PHOSPHINES BRIDGING 2 CLUSTER UNITS - MOLECULAR-STRUCTURE OF (RU-3(MU-H)(MU(3)-C2BUT)(CO)(8))(2)(MU-DPPA) [DPPA = C-2(PPH2)(2)], Australian Journal of Chemistry, 50(6), 1997, pp. 535-538
The syntheses of two complexes consisting of two Ru-3(mu-H)(mu(3)-C2Bu
t)(CO)(8) clusters bridged by acetylenic ditertiary phosphines, C-2(PR
2)(2) [R = Ph (3), Bu-n (4)], are described. The molecular structure o
f (3) confirms that substitution of the cluster at the ruthenium which
is a bonded to the acetylide has occurred. The structural parameters
closely resemble those of Ru-3(mu-H)(mu(3)-C2But)(CO)(8)(L) [L = CO, P
Ph2(OEt)].