By the interaction of Nb(NMe₂)₅ and 1,3-(2,6-diisopropylphenyl)imidazolium (IPr·HBF₄) tetrafluoroborate a binuclear complex with coordinated N-heterocyclic carbene [(IPr)Nb(=NMe)(NMe₂)(μ-F)₂(μ-NMe₂) NbF₂(NMe₂)] (1) is obtained. The reaction of Nb(NMe₂)₅ and 1,3-(2,4,6-trimethylphenyl)imidazolium (IMes·HBF₄) tetrafluoroborate yields [(IMes)₂H][NbF₆] salt (2). The structure of the complexes is determined by single crystal X-ray diffraction.

中文翻译：

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N-杂环碳配位双核铌配合物

通过Nb（NMe ₂）₅和1,3-（2,6-二异丙基苯基）咪唑鎓（IPr·HBF ₄）四氟硼酸酯与配位N杂环卡宾[（IPr）Nb（= NMe）（NMe ₂）（μ-F）₂（μ-NME ₂）NBF ₂（NME ₂）]（1）被获得。Nb（NMe ₂）₅与1,3-（2,4,6-三甲基苯基）咪唑鎓（IMes·HBF ₄）四氟硼酸盐的反应生成[（IMes）₂ H] [NbF ₆ ]盐（2）。配合物的结构通过单晶X射线衍射确定。