Synthesis, characterization, and some ligand-redistribution reactions of the mercuric complexes [Re7C(CO)21HgY]2-

Carbidoheptarhenate Complexes of Mercury Hydroxide and Arenethiolate. Crystal Structures of [NEt3Bz]2[Re7C(CO)21HgOH] and [PPh4]2[Re7C(CO)21HgSC6H4Br]

“…General Procedures. [Et 3 BzN] 2 [Re 7 C(CO) 21 HgCl] was prepared as previously reported . The salt [PPh 4 ][Re 7 C(CO) 21 HgCl] was prepared in a similar manner (91%).…”

“…3 In an earlier paper we mentioned the apparent transformation under FAB-MS conditions of [Re 7 C(CO) 21 HgCl] 2into [Re 7 -C(CO) 21 HgSR] 2when the dispersing matrix was a dithioerythritol/dithiothreitol mixture. 4 We have subsequently investigated such substitution reactions under preparative conditions and now report the formation of the novel hydroxide derivative [Re 7 C(CO) 21 HgOH] 2and its facile transformation into the thiolate complex [Re 7 C(CO) 21 HgSC 6 H 4 Br] 2-(eq 1).…”

“…[Et3BzN]2[Re7C(CO)21HgCl] was prepared as previously reported. 4 The salt [PPh4][Re7C(CO)21HgCl] was prepared in a similar manner (91%). Silver nitrate (Allied Chemical) and 4-bromothiophenol (Aldrich) were used as received.…”

Carbidoheptarhenate Cluster Complexes of Mercury with Hydrosulfide or Functionalized Thiolate Ligands

“…In previous papers we have described the synthesis and properties of mercury derivatives of the carbidoheptarhenate cluster, namely, [Re 7 C(CO) 21 HgL] 2- , including formation of the hydroxo mercury compound [Re 7 C(CO) 21 HgOH] 2- and its facile transformation to an arylthiolato complex [Re 7 C(CO) 21 HgSAr] 2- . In this paper we report on an expanded range of sulfur derivatives of this cluster-supported mercury center, including the hydrosulfide derivative as well as a set of thiolate derivatives in which the sulfur ligand bears an additional functional group (see Scheme ).…”

Cluster Complexes with Bonds Between Transition Elements and Zinc, Cadmium, and Mercury

“…A series of complexes of the general formula [Re 7 C(CO) 21 66 The clusters all appear to adopt a 1,4-bicapped octahedral structure (7). The ligand exchange reactions for this series follow the expected order for the bridging ability o f the ligands involved (Cl > Ph > Me > Bu l ).…”