A crystalline stannyne

Wang, Xin-Feng1; Hu, Chaopeng1; Li, Jiancheng1; Wei, Rui1; Zhang, Xin1; Liu, Liu Leo1

2024-06-01

10.1038/s41557-024-01555-4

NATURE CHEMISTRY   影响因子和分区

1755-4330

1755-4349

["The synthesis of heteronuclear alkyne analogues incorporating heavier group 14 elements (R1-C equivalent to E-R2, E = Si, Ge, Sn, Pb) has posed a long-standing challenge. Neutral silynes (R1-C equivalent to Si(L)-R2) and germynes (R1-C equivalent to Ge(L)-R2) stabilized by a Lewis base have achieved sufficient stability for structural characterization at low temperatures. Here we show the isolation of a base-free stannyne (R1-C equivalent to Sn-R2) at room temperature, achieved through the strategic use of a bulky cyclic phosphino ligand in combination with a bulky terphenyl substituent. Despite an allenic structure with strong delocalization of pi-electrons, this compound exhibits adjacent ambiphilic carbon and tin centres, forming a carbon-tin multiple bond with ionic character. The stannyne demonstrates reactivity similar to carbenes or stannylenes, reacting with 1-adamantyl isocyanide and 2,3-dimethyl-1,3-butadiene. Additionally, its carbon-tin bond can be saturated by Et3NHCl or cleaved by isopropyl isocyanate.","Due to their challenging isolation, stannynes are underexplored and poorly understood. Now, a stannyne has been synthesized and isolated at room temperature using a bulky cyclic phosphino ligand, and it has been shown to exhibit the reactivity characteristics of carbenes, stannylenes and carbon-tin multiply bonded compounds."]

SCI

英语

第一 ; 通讯

National Natural Science Foundation of China (National Science Foundation of China)["22350004","22271132","22101114"] ; National Natural Science Foundation of China["20231120110042001","JCYJ20220530114806015"] ; Shenzhen Science and Technology Innovation Program["2021ZT09C278","G03050K003"] ; Guangdong Innovation & Entrepreneurial Research Team Program[2020B121201002]

Chemistry

Chemistry, Multidisciplinary

WOS:001248566300003

NATURE PORTFOLIO

Web of Science

1.Southern Univ Sci & Technol, Coll Sci, Dept Chem, Shenzhen, Peoples R China
2.Southern Univ Sci & Technol, Coll Sci, Res Ctr Chem Biol & Omics Anal, Shenzhen, Peoples R China

Wang, Xin-Feng,Hu, Chaopeng,Li, Jiancheng,et al. A crystalline stannyne[J]. NATURE CHEMISTRY,2024.

Wang, Xin-Feng,Hu, Chaopeng,Li, Jiancheng,Wei, Rui,Zhang, Xin,&Liu, Liu Leo.(2024).A crystalline stannyne.NATURE CHEMISTRY.

Wang, Xin-Feng,et al."A crystalline stannyne".NATURE CHEMISTRY (2024).