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Carboxylate Ligand-supported Ag n (n=21 and 24) Alkynyl Clusters Induced by Single/Double Carbonate Ions.

Li LiNa LiuKun ZhouGuang-Min LiangYi-Fan TanJiu-Yu JiBao-Kuan ChenYan-Feng Bi
Published in: Chemistry, an Asian journal (2023)
Structural transformation is important for the study of silver cluster compounds, in which controlled synthesis of their shapes and sizes via anion template-driven is one key scientific question. In this work, the CO 3 2- anion templates were captured by the [ t BuC≡CAg] n system under the stimulation induced by carboxylate ligand CF 3 COO - /PhCOO - , and two silver alkynyl clusters [(CO 3 2- )@Ag 21 ( t BuC≡C) 16 (CF 3 COO) 3 (H 2 O)]⋅DMF⋅2CH 2 Cl 2 (1) and [(CO 3 2- ) 2 @Ag 24 ( t BuC≡C) 16 (PhCOO) 4 ]⋅CH 3 OH⋅4DMF (2) have been successfully isolated and charactered. With the increase of the number of CO 3 2- templates from single to double, the outer silver atoms from twenty-one to twenty-four, accompanied by the growth of the cluster skeleton from 9.8 Å ×6.9 Å of the (CO 3 2- )@Ag 21 unit to 10.5 Å ×7.3 Å of the (CO 3 2- ) 2 @Ag 24 unit. In addition, the syntheses, structures, photocurrent responses, cyclic voltammetry characteristics, luminescence, and photodegradation of compounds 1 and 2 have been studied.
Keyphrases
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