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Title: Synthesis and Characterization of Group 14 Dialkylmetal Chalcogenones RN2ME [RN = CH(SiMe3)C9H6N-8 or CPh(SiMe3)C5H4N-2; M = Ge or Sn; E = S, Se, or Te]
Authors: Leung, WP
Kwok, WH
Zhou, ZY
Mak, TCW
Issue Date: 2000
Publisher: American Chemical Society
Source: Organometallics, 2000, v. 19, no. 3, p. 296-303 How to cite?
Journal: Organometallics 
Abstract: Treatment of group 14 metal dialkyl MRN2 (M = Ge or Sn) with elemental chalcogens (sulfur, selenium, or tellurium) in THF afforded the corresponding chalcogenones RN2ME [RN = CPh(SiMe3)C5H4N-2; M = Ge; E S (4), Se (5), Te (6); M = Sn; E = S (7), Se (8); RN = CH(SiMe3)C9H6N-8, M = Sn; E = Se (10), Te (11)]. In contrast, a sulfido-bridged dimer [RN2Sn(μ-S)]2 (9) was obtained from similar reaction of SnRN2 [RN = CH(SiMe3)C9H6N-8] with elemental sulfur. These chalcogenones have been characterized by elemental analysis, 1H, 13C, 119Sn, 77Se, and 125Te NMR, and mass spectroscopy. X-ray structure of 5, 8, 9, 10, and 11 have been determined. It was revealed that compounds 5, 8, 10, and 11 consist of a terminal metal−chalcogen bond with the ligands RN acting in a C,N-chelate fashion, except for 9, which is a sulfido-bridged dimer.
ISSN: 0276-7333
EISSN: 1520-6041
DOI: 10.1021/om9906159
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