氧杂蒽染料修饰钴-硫脲配合物的光解水放氢性能（英文）

发布时间：2018-04-25 20:40

本文选题：光致电子转移 + 钴　；参考：《无机化学学报》2017年06期

【摘要】：将具有不同端基的硫脲基团与三苯基磷组分结合,利用所得到的配体合成了2个具有NSP(氮硫磷)鳌合位点的钴-硫脲化合物,并研究了其光解水产氢性能。配合物[Co(L2)(L2′)](BF_4)_(2.5)·H_2O·0.5C_2H_5OH(2)(L2=(2-二苯基膦-苯烯基)-氨基硫脲腙-罗丹明6G,L2′=(2-二苯基膦氧-苯烯基)-氨基硫脲腙-罗丹明6G)通过引入罗丹明荧光团与光敏剂分子协同作用,其产氢TON值可以达到2 800 molH2·molcat~(-1),其初始TOF值可达到930 molH_2·molcat~(-1)·h~(-1)。相同条件下,相比于配合物[Co(L1)(L1′)](BF_4)·0.5H_2O(1)(L1=(2-二苯基膦-苯烯基)-氨基硫脲腙-硫甲基,L1′=(2-二苯基膦氧-苯烯基)-氨基硫脲腙-硫甲基),提高了体系的催化活性,可能是由于荧光素分子与配合物2之间的分子间π-π堆积作用有利于光敏剂和光催化剂之间的光致电子转移。
[Abstract]:Two cobalt-thiourea compounds with NSP chelate sites were synthesized by binding thiourea groups with different terminal groups to triphenyl phosphorus components and their hydrophotic properties in aquatic products were studied. The coordination compound [CoL _ 2C _ 2H _ 2H _ 2C _ 2H _ 2 / C _ 2H _ 2H _ 2H _ 2O _ 2 / L _ 2H _ 2 / C _ (2) O _ (2) C _ (2) C _ (2) H _ (2) C _ (2) C _ (2) H _ (2) C _ (2) C _ (2) H _ (2) C _ (2) C _ (2) C _ (2) C _ (2) C _ (2) H _ (2) C _ (2) C _ (2) H _ (2) C _ (2) C _ (2) H _ (2) C _ (2) H _ (2) O _ (2 The TON value of hydrogen production can reach 2 800 molH2 / mol catactyl and the initial TOF value can reach 930 molH_2 / mol / 1) H ~ (-1). Under the same conditions, the catalytic activity of the system was improved compared with that of the complex [CoL _ (1) / L _ (1 / 1)] (B _ F _ (4) _ (0.5) H _ (2) O _ (2) H _ (2) O _ (2) -diphenylphosphine _ (2) -phenylethylphosphonyl -thiocarbazone -thiosemicarbazone, and the catalytic activity of the system was improved, and the catalytic activity of the system was improved. It is possible that the 蟺-蟺 accumulation between fluorescein molecule and complex 2 is favorable for photoinduced electron transfer between Guang Min and photocatalyst.
【作者单位】：大连理工大学精细化工重点实验室;
【基金】：国家自然科学基金(No.21531001)资助项目
【分类号】：O643.36;TQ116.2

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