新型碘磷灰石：合成与晶体结构

New iodine-apatites: synthesis and crystal structure.

作者信息

Bulanov Evgeny N, Petrov Sergey S, Knyazev Alexander V

机构信息

Department of Analytical and Medicinal Chemistry, Faculty of Chemistry, Lobachevsky University, Nizhny Novgorod Russia.

出版信息

Turk J Chem. 2021 Oct 19;45(5):1444-1453. doi: 10.3906/kim-2102-5. eCollection 2021.

DOI:10.3906/kim-2102-5

PMID:34849058

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8596529/

Abstract

The paper describes methods for the preparation of compounds with an apatite structure containing only iodine atoms in the "halogen" position. The crystal structure of the compounds was refined by the Rietveld method. The resulting apatites have a structure with a space group 6/ and have the following unit cell parameters: Ba Ba (PO)I ( = 10.18609(34) Å, = 7.71113(30) Å, = 692.889(54) Å, = 5.448 %), Pb Pb (PO)I ( = 9.87882(18) Å, = 7.43222(16) Å, = 628.144(26) Å, = 8.533 %), Pb Pb (PO)I ( = 9.87058(48) Å, = 7.41255(46) Å, = 625.437(72) Å, = 5.433 %). The study of the crystal structure showed a relatively low efficiency of the binding of iodine in the apatite matrix.

摘要

该论文描述了制备在“卤素”位置仅含碘原子的磷灰石结构化合物的方法。通过Rietveld方法对化合物的晶体结构进行了精修。所得磷灰石具有空间群为6/的结构，并具有以下晶胞参数：Ba Ba (PO)I （ = 10.18609(34) Å， = 7.71113(30) Å， = 692.889(54) Å， = 5.448 %），Pb Pb (PO)I （ = 9.87882(18) Å， = 7.43222(16) Å， = 628.144(26) Å， = 8.533 %），Pb Pb (PO)I （ = 9.87058(48) Å， = 7.41255(46) Å， = 625.437(72) Å， = 5.433 %）。晶体结构研究表明碘在磷灰石基质中的结合效率相对较低。