Synthesis and Reactivity of N-Heterocyclic Carbene Coordinated Formal Germanimidoyl-Phosphinidenes

Haonan Chen; Yizhen Chen; Tong Li; Dongmin Wang; Lei Xu; Gengwen Tan

doi:10.1021/acs.inorgchem.3c03353

Synthesis and Reactivity of N-Heterocyclic Carbene Coordinated Formal Germanimidoyl-Phosphinidenes

Inorg Chem. 2023 Dec 25;62(51):20906-20912. doi: 10.1021/acs.inorgchem.3c03353. Epub 2023 Dec 14.

Authors

Haonan Chen^{1

2}, Yizhen Chen^{1

2}, Tong Li¹, Dongmin Wang^{1

2}, Lei Xu³, Gengwen Tan^{1

2

4}

Affiliations

¹ Innovation Center for Chemical Sciences, Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
² Key Laboratory of Bioinorganicand Synthetic Chemistry of Ministry of Education, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou 510275, China.
³ Jiangsu Key Lab of Data Engineering and Knowledge Service, Key Laboratory of Data Intelligence and Interdisciplinary Innovation, Nanjing University, Nanjing 210023, China.
⁴ Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China.

PMID: 38095884
DOI: 10.1021/acs.inorgchem.3c03353

Abstract

Treatment of N-heterocyclic carbene (NHC) ligated germylidenylphosphinidene M^sFluid^tBu-GeP(NHC^iPr) (where M^sFluid^tBu is a bulky hydrindacene substituent, and NHC^iPr is 1,3-diisopropyl-4,5-dimethyl-imidazolin-2-ylidene) with mesityl azide and 4-tertbutylphenyl azide afforded NHC coordinated formal germanimidoyl-phosphinidenes, which represent the first compounds bearing both Ge═N double bond and phosphinidene functionalities. Studies of the chemical properties revealed that the reactions preferred to occur at the Ge═N double bond, which underwent [2 + 2] cycloadditions with CO₂ and ethyl isocyanate, and coordinated with coinage metals through the nitrogen atom.