The interactions of [(HMB)Ru
II{
3-tpdt)}] (
1) [HMB =
6-C
6Me
6, tpdt = S(CH
2CH
2S
-)
2] withCr(CO)
6, [CpCr(CO)
3]
2, [CpCrCl
2(SP
yH)], and [Cp*Cr(CH
3CN)
4](PF
6)
2 (
6) produced a series of thiolate-bridged Ru-Cr heterobimetallic complexes: viz., [{(HMB)Ru(
-
2:
3-tpdt)}{Cr(CO)
4}] (
3), [{(HMB)Ru(
-
2:
3-tpdt)}{CpCr(CO)
2}][CpCr(CO)
3] (
4), [{(HMB)Ru(
-
2:
3-tpdt)}{CpCrCl}](PF
6) (
5), and[{(HMB)Ru(
-
2:
3-tpdt)}{Cp*Cr(MeCN)}](PF
6)
2 (
8), in respective
yields of 29%, 67%, 62%, and 79%.Complex
6 was s
ynthesized from [Cp*CrBr
2]
2 and found to readil
y convert to [Cp*Cr{(CH
3)
2CO}
3][Cp*Cr{(CH
3)CO}
2(MeCN)](PF
6)
4 (
7) upon recr
ystallization from acetone. Each compound could beelectrochemicall
y oxidized and reduced in several one-electron or multiple-electron steps. The voltammetricresponses were complicated and varied depending on the electrode surface and temperature. The single-cr
ystal X-ra
y structures of
3-5,
7, and
8 have been determined.