SPECTROSCOPIC PROPERTIES OF (ND)10 TRANSITION-METAL COMPLEXES
SPECTROSCOPIC PROPERTIES OF (ND)10 TRANSITION-METAL COMPLEXES
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DOI：
10.1016/0010-8545(85)80040-0
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发表时间：
1985-01-01
影响因子：
20.6
通讯作者：
TRUESDELL, KA
中科院分区：
文献类型：
--
作者：
CROSBY, GA;HIGHLAND, RG;TRUESDELL, KA
从一系列含有n杂环和芳香硫醇配体的Zn（II）和Cd（II）配合物中观察到光致发光。发射包括重叠带，结构磷光产生于杂环的最低3π *态和宽带发光，在更低的能量下最大，衰减在10-50 μs左右。这个新带被分配到配体间电荷转移激发结构，其中电子电荷通过金属离子从配位的硫醇配体转移到n杂环上。提出了一种超交换机制来解释单重态和三重态的分布。
Photoluminescence has been observed from a series of Zn(II) and Cd(II) complexes containing both N-heterocyclic and aromatic thiol ligands. The emission consists of overlapping bands, a structured phosphorescence that arises from the lowest3ππ*state of the heterocycle and a broad band luminescence that maximizes at still lower energies and decays on the order of 10–50 μs. This new band is assigned to an interligand charge-transfer excited configuration in which electronic charge has been transferred from the coordinated thiol ligand(s) to the N-heterocycle via the metal ion. A superexchange mechanism is proposed to account for the disposition of singlet and triplet states.