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焦磷酸钾

KPr(PO(3))(4).

作者信息

Oudahmane Abdelghani, Daoud Mohamed, Tanouti Boumediene, Avignant Daniel, Zambon Daniel

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2010 Jul 14;66(Pt 8):i59-i60. doi: 10.1107/S1600536810026942.

DOI:10.1107/S1600536810026942
PMID:21588081
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3007571/
Abstract

Single crystals of the title compound, potassium praseodymium(III) polyphosphate, were obtained by solid-state reaction. The monoclinic non-centrosymmetric structure is isotypic with all other KLn(PO(3))(4) analogues from Ln = La to Er, inclusive. The crystal structure of these long-chain polyphosphates is built up from infinite crenelated polyphosphate chains of corner-sharing PO(4) tetra-hedra with a repeating unit of four tetra-hedra. These chains, running along [100], are arranged in a pseudo-tetra-gonal rod packing and are further linked by isolated PrO(8) square anti-prisms [Pr-O = 2.3787 (9)-2.5091 (8) Å], forming a three-dimensional framework. The K(+) ions reside in channels parallel to [010] and exhibit a highly distorted coordination sphere by eight O atoms at distances ranging from 2.7908 (9) to 3.1924 (11) Å.

摘要

通过固态反应获得了标题化合物——聚磷酸镨(III)钾的单晶。单斜非中心对称结构与所有其他从镧到铒（包括镧和铒）的KLn(PO(3))(4)类似物同型。这些长链多磷酸盐的晶体结构由无限的锯齿状多磷酸盐链构成，该链由共用角的PO(4)四面体组成，其重复单元为四个四面体。这些沿着[100]方向延伸的链以假四方棒堆积排列，并通过孤立的PrO(8)方形反棱柱[Pr - O = 2.3787 (9)-2.5091 (8) Å]进一步连接，形成三维框架。K(+)离子位于平行于[010]的通道中，并且由八个O原子形成高度扭曲的配位球，距离范围为2.7908 (9)至3.1924 (11) Å。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85ec/3007571/6fc780667620/e-66-00i59-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85ec/3007571/6b5e89187f42/e-66-00i59-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85ec/3007571/b633638230e2/e-66-00i59-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85ec/3007571/6fc780667620/e-66-00i59-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85ec/3007571/6b5e89187f42/e-66-00i59-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85ec/3007571/b633638230e2/e-66-00i59-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85ec/3007571/6fc780667620/e-66-00i59-fig3.jpg

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