Luminescent iridium complexes for detection of molybdate

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L. Davies, David; Duhme Klair, Anne-K; Singh, Kuldip; Singh, Shalini; Castillo González, Carmen EstherDate
2012-01Department
Ciencia de los Materiales e Ingeniería Metalúrgica y Química InorgánicaSource
Dalton Transactions 2012, 41, 628Abstract
Reactions of [Ir(CŸN)2Cl]2 [HCŸN = 2-(3-R-phenyl)pyridine, 2-(3-R-phenylpyrazole) R = H, Me] with Me2-phencat give luminescent complexes [Ir(CŸN)2(Me2-phencat)][PF6] (Me2-2a, b, c)[PF6]. Deprotection of the methoxy groups with BBr3 is problematic as simultaneous bromination of the cyclometallated phenyl groups occurs. However, deprotection of Me2-phencat with BBr3 followed by complexation with [Ir(CŸN)2Cl]2 gives luminescent complexes [Ir(CŸN)2(H2-phencat)][PF6] (H2-3a, c)[PF6], which are luminescent sensors for molybdate.
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