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Title: Reactivity of a distannylene toward potassium graphite : synthesis of a stannylidenide anion
Authors: Chia, Siew-Peng
Ganguly, Rakesh
Li, Yongxin
So, Cheuk-Wai
Issue Date: 2012
Source: Chia, S.-P., Ganguly, R., Li, Y., & So, C.-W. (2012). Reactivity of a Distannylene toward Potassium Graphite: Synthesis of a Stannylidenide Anion. Organometallics, 31(17), 6415–6419.
Series/Report no.: Organometallics
Abstract: The synthesis and characterization of the stannylidenide anion [LSn:]− (L = 2,6-(CH═NBut)2C6H3) supported by the 2,6-diiminophenyl ligand is described. The reaction of the chlorostannylene [LSnCl] (2) with excess KC8 in diethyl ether at room temperature afforded the distannylene [LSn:]2 (3). The treatment of 3 with 2 equiv of KC8 in tetrahydrofuran (THF) resulted in the cleavage of the SnI–SnI bond in 3 to afford the potassium stannylidenide [LSnK·THF] (4). The molecular structure of compound 4 as determined by single-crystal X-ray diffraction analysis shows that the K atom is η5-coordinated to the low-valent tin heterocycle. Moreover, the negative charge at the Sn atom in compound 4 is stabilized by an electron delocalization in the low-valent tin heterocycle.
DOI: 10.1021/om300646d
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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