新型水合亚硒酸铅 Pb4(SeO3)3(NO3)2-2H2O 的合成与晶体结构

IF 1.2 4区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Structural Chemistry Pub Date : 2024-07-26 DOI:10.1134/s002247662407014x

O. I. Siidra, V. Yu. Grishaev

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引用次数: 0

摘要

Abstract The synthesis and crystal structure of new hydrated lead selenite nitrate Pb4(SeO3)3(NO3)2-2H2O (1) are reported.1 的晶体结构 (\(P\bar{1}\), a = 7.2590(2) Å, b = 7.6454(2) Å, c = 14.7293(4) Å, α = 84.386(2)°, β = 78.311(2)°, γ = 83.643(2)°, V = 793.18(4) Å3, R1 = 3.1%) 属于一种新的结构类型。它基于由[Pb4(SeO3)3]2+层组成的多孔框架，通过硝酸根阴离子紧密结合。水分子位于通道中。SeO3E 基团的立体化学活性电子对相互指向对方。将 1 的结构与涉及 Pb2+ 和 Se4+ 阳离子的类似结构进行了比较。

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Synthesis and Crystal Structure of New Hydrated Lead Selenite Nitrate Pb4(SeO3)3(NO3)2·2H2O

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Synthesis and Crystal Structure of New Hydrated Lead Selenite Nitrate Pb4(SeO3)3(NO3)2·2H2O

Abstract

The synthesis and crystal structure of new hydrated lead selenite nitrate Pb₄(SeO₃)₃(NO₃)₂·2H₂O (1) are reported. The crystal structure of 1 (\(P\bar{1}\), a = 7.2590(2) Å, b = 7.6454(2) Å, c = 14.7293(4) Å, α = 84.386(2)°, β = 78.311(2)°, γ = 83.643(2)°, V = 793.18(4) Å³, R₁ = 3.1%) belongs to a new structure type. It is based on a porous framework composed of [Pb₄(SeO₃)₃]²⁺ layers strongly bound via nitrate anions. Water molecules are located in the channels. Stereochemically active electron pairs of SeO₃E groups are directed toward each other. The structure of 1 is compared with similar architectures involving Pb²⁺ and Se⁴⁺ cations.

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来源期刊

Journal of Structural Chemistry 化学-无机化学与核化学

CiteScore

1.60

自引率

12.50%

发文量

142

审稿时长

8.3 months

期刊介绍： Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.