A series of luminescent bis(isocyanoborato) rhenate(I) phenanthroline complexes with the general formula of cis,trans-[Re(CO)₂(CNBR₃)₂(phen)]K (R = C₆F₅ and C₆H₅) have been designed and synthesized. The solutions of these complexes exhibit MLCT phosphorescence. Detailed anion titration study showed that the emission intensity of bis(isocyanotriphenylborato) complex in CH₃CN/H₂O solution would be significantly decreased in the presence of cyanide anion, while such a change would not be observed in the presence of other anions including F^–, Cl^–, Br^–, I^–, OH^–, AcO^–, N₃^–_, ClO₄^–, H₂PO₄^–, HSO₄^–, NO₃^–, NO₂^–, IO₃^–, and SCN^–. This provides a new strategy for developing highly selective cyanide luminescent sensors based on isocyanoborato transition metal complexes.

中文翻译：

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发光双（异氰基硼酸盐）莱茵酸（I）配合物作为氰化物阴离子的选择性传感器的设计与合成

通式为顺式，反-[Re（CO）₂（CNBR ₃）₂（phen）] K（R = C ₆ F ₅和C ₆ H的通式的一系列发光双（异氰酸盐））酸酯（I）菲咯啉配合物₅）已经设计和合成。这些复合物的溶液显示出MLCT磷光。详细的阴离子滴定研究表明，在存在氰化物阴离子的情况下，CH ₃ CN / H ₂ O溶液中双（异氰基_三苯基硼酸盐）络合物的发射强度会显着降低，而在其他阴离子存在下则不会观察到这种变化F ^–，氯^- ，溴^- ，我^-，OH ^-，ACO ^-，N ₃ ^- _， CLO ₄ ^-，H ₂ PO ₄ ^-，HSO ₄ ^-，NO ₃ ^-，NO ₂ ^-，IO ₃ ^- ，和SCN ^- 。这为开发基于异氰基硼酸盐过渡金属配合物的高选择性氰化物发光传感器提供了新策略。