New Members of the Family of In鈥揝b鈥揝 Compounds: Different Roles of Organic Amines

详细信息    查看全文

• 作者：Kai-Yao Wang ; Bo Zhang ; Xing-Hui Qi ; Nan-Nan Shen ; Cheng-Feng Du ; Zhao-Feng Wu ; Mei-Ling Feng ; Xiao-Ying Huang
• 刊名：Crystal Growth & Design
• 出版年：2015
• 出版时间：January 7, 2015
• 年：2015
• 卷：15
• 期：1
• 页码：29-38
• 全文大小：731K
• ISSN：1528-7505

文摘

Reported here are the syntheses, structures, and characterizations of four novel In鈥揝b鈥揝 compounds containing organic amines, namely, [PAH]₃[In₃Sb₂S₉] (PA = n-propylamine) (1), [Fe(en)₃][In₂Sb₂S₇] (en = ethylenediamine) (2), [Mg(dien)₂][In₂Sb₂S₇]路0.5H₂O (dien = diethylenetriamine) (3), and In₂(N,N-dmen)₂Sb₂S₆ (N,N-dmen = N,N-dimethylethylenediamine) (4). Compound 1 features a [In₃Sb₂S₉]_n^{3n鈥?/sup> layer assembled by the alternating linkage of the {In₂Sb₂S₈}_n ribbons and the {In₄Sb₂S₁₂}_n double-ribbons. Both compounds 2 and 3 possess layered anionic parts with the same stoichiometry of [In₂Sb₂S₇]_n2n鈥?/sup> but distinct linkage modes between the subunits of {In₂S₇} groups and Sb3+ ions. Notably, the {In₂Sb₂S₉} heterometallic cluster observed in 3 is initially regarded as the secondary building unit (SBU) for the construction of the [In₂Sb₂S₇]_n2n鈥?/sup> layer. Compound 4 features a novel discrete inorganic鈥搊rganic hybrid molecule of In₂(N,N-dmen)₂Sb₂S₆. Through the structural analyses on 1鈥?b>4, the organic amines applied played three different roles on the formation of the final crystalline products. For 1, the protonated n-propylamines arrange in the space around the anionic network and balance the negative charge. For 2 and 3, the chelating polyamines coordinate to central metal ions to form metal complexes, which then act as space-filling and charge-balancing agents. For 4, two N,N-dimethylethylenediamines chelate to two In3+ ions of the inorganic segment through coordination bonds, leading to the formation of a rare inorganic鈥搊rganic hybrid cluster. At last, we gave a systematic discussion about the characteristics and roles of organic amines in all related In鈥揝b鈥揝 compounds. In one word, the work presented here enriches the structural chemistry of the main-group heterometallic chalcogenidometalates, providing more chances for researchers to work out the rules in their composition鈥?or structure鈥揻unction relationship.}