Asymmetrically anchoring silver alkynyl cluster to the cobalt-containing polyoxometalate

IF 8.9 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Chinese Chemical Letters Pub Date : 2025-07-01 Epub Date: 2024-06-04 DOI:10.1016/j.cclet.2024.110090

Qing Li, Fangyu Fu, Mengyun Zhao, Yeqin Feng, Manzhou Chi, Zichen Zhao, Hongjin Lv, Guo-Yu Yang

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Abstract

Comparing to the conventional polyoxometalate (POM)-templated silver (Ag) clusters, asymmetrically covered POM-templated Ag clusters have been rarely reported. In this work, a new Ag cluster, H[Co(SiW₁₁O₃₉)Co₄(OH)₃(NO₃)₂(SiW₉O₃₄)@Ag₃₇(^tBuCC)₂₃(NO₃)₂(DMF)₃] (Ag₃₇Co₅), has been successfully prepared using a facile solvothermal approach. Such a unique asymmetrical architecture is ascribed to the uneven charge distribution of the in situ generated [Co(SiW₁₁O₃₉)]⁶⁻ and [Co₄(OH)₃(NO₃)₂(SiW₉O₃₄)]⁷⁻ moieties, leading to the asymmetrical coverage of alkynyl-protected Ag shell. Various physicochemical and catalytic studies revealed that the resulting solid-state Ag₃₇Co₅ crystals exhibited interesting temperature-dependent photoluminescence property, efficient and recyclable photothermal conversion ability, and good catalytic activity towards the detoxication of 4-nitrophenol.

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不对称地将银炔基团簇锚定到含钴的多氧金属铝酸盐上

与传统的多金属氧酸盐（POM）模板银（Ag）簇相比，不对称覆盖的POM模板银（Ag）簇很少被报道。在这项工作中，成功地用简单的溶剂热方法制备了一个新的Ag簇H[Co(SiW11O39)Co4(OH)3(NO3)2(SiW9O34)@Ag37(tBuCC)23(NO3)2(DMF)3] （Ag37Co5）。这种独特的不对称结构归因于原位生成的[Co(SiW11O39)]6−和[Co4(OH)3(NO3)2(SiW9O34)]7−的电荷分布不均匀，导致烷基保护Ag壳的不对称覆盖。各种物理化学和催化研究表明，所得的固态Ag37Co5晶体具有有趣的温度依赖性光致发光特性，高效和可回收的光热转化能力，以及对4-硝基苯酚解毒的良好催化活性。

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来源期刊

Chinese Chemical Letters 化学-化学综合

CiteScore

14.10

自引率

15.40%

发文量

8969

审稿时长

1.6 months

期刊介绍： Chinese Chemical Letters (CCL) (ISSN 1001-8417) was founded in July 1990. The journal publishes preliminary accounts in the whole field of chemistry, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, polymer chemistry, applied chemistry, etc.Chinese Chemical Letters does not accept articles previously published or scheduled to be published. To verify originality, your article may be checked by the originality detection service CrossCheck.