Reactivity of a distannylene toward potassium graphite : synthesis of a stannylidenide anion
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 tre...
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| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/101124 http://hdl.handle.net/10220/13699 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | 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. |
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