Electrospray mass spectrometric investigation of the reactivity of the sulfide centers in [Pt2(μ-S)2(PPh3)4] towards organic dihalides and the catalytic potential of this complex in the syntheses of organosulfur materials
✍ Scribed by Siew Huay Chong; Antonius Tjindrawan; T.S.Andy Hor
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 240 KB
- Volume
- 204-205
- Category
- Article
- ISSN
- 1381-1169
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✦ Synopsis
Activity of [Pt 2 (-S) 2 (PPh 3 ) 4 ] (1) towards 1,4-dichlorobutane, 1,2-dichloroethane, ␣-␣ -dichloro-o-xylene and ␣-␣dichloro-m-xylene and the catalytic role of 1 in the syntheses of organosulfur materials was studied by in situ electrospray mass spectroscopy (ESMS). An intermediate, [Pt 2 (-SC 2 H 4 S)(PPh 3 ) 4 ][PF 6 ] 2 (6) was isolated and characterized by single-crystal X-ray crystallographic diffractometry. In all reactions studied, the {Pt 2 S 2 } core is preserved, except for those involving excess NaBH 4 . Treatment of 6 with excess NaBH 4 leads to the formation of mononuclear complex [Pt(-S 2 C 4 H 8 )(PPh 3