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由甲基二乙醇胺和异丁酸盐配体构建的一维链状锶（II）配位聚合物的合成与晶体结构

Synthesis and crystal structure of a one-dimensional chain-like strontium(II) coordination polymer built of -methyldi-ethano-lamine and isobutyrate ligands.

作者信息

Seiss Maximilian, Schmitz Sebastian, Börner Martin, Monakhov Kirill Yu

机构信息

Leibniz Institute of Surface Engineering (IOM), Permoserstr. 15, 04318 Leipzig, Germany.

出版信息

Acta Crystallogr E Crystallogr Commun. 2021 Jun 11;77(Pt 7):703-707. doi: 10.1107/S2056989021005594. eCollection 2021 Jul 1.

DOI:10.1107/S2056989021005594
PMID:34513015
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8382055/
Abstract

The one-dimensional coordination polymer () [Sr(ib)(Hmda)] (Hib = isobutyric acid, CHO, and Hmda = -methyldi-ethano-lamine, CHNO), namely, -poly[[(-methyldi-ethano-lamine-κ ,,')strontium(II)]-di-μ-isobutyrato-κ ,':;κ :,'], was prepared by the one-pot aerobic reaction of [ZrO(OH)(ib)(HO)]·3Hib with Sr(NO) and Hmda in the presence of MnCl and EtN in aceto-nitrile. The use of MnCl is key to the isolation of as high-quality colorless crystals in good yield. The mol-ecular solid-state structure of was determined by single-crystal X-ray diffraction. Compound crystallizes in the monoclinic space group 2/ and shows a one-dimensional polymeric chain structure. Each monomeric unit of this coordination polymer consists of a central Sr ion in the NO coordination environment of two deprotonated ib ligands and one fully protonated Hmda ligand. The C and O atoms of the Hmda ligand were refined as disordered over two sets of sites with site occupancies of 0.619 (3) and 0.381 (3). Compound shows thermal stability up to 130°C in air.

摘要

一维配位聚合物（）[Sr(ib)(Hmda)] （Hib = 异丁酸，CHO，且Hmda = -甲基二乙醇胺，CHNO），即 -聚[[(-甲基二乙醇胺-κ ,,')锶(II)]-二-μ-异丁酰基-κ ,':;κ :,]，通过在乙腈中，[ZrO(OH)(ib)(HO)]·3Hib与Sr(NO)和Hmda在MnCl和EtN存在下的一锅有氧反应制备而成。使用MnCl是高产率分离出高质量无色晶体的关键。通过单晶X射线衍射确定了的分子固态结构。化合物结晶于单斜空间群2/，并呈现出一维聚合物链结构。该配位聚合物的每个单体单元由处于两个去质子化ib配体和一个完全质子化Hmda配体的NO配位环境中的中心Sr离子组成。Hmda配体的C和O原子在两组位置上无序精制，占位比为0.619 (3)和0.381 (3)。化合物在空气中高达130°C时表现出热稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/7e65c66fbf41/e-77-00703-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/ee2f1feea0a2/e-77-00703-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/9efb1b82effe/e-77-00703-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/47a4041a3cd0/e-77-00703-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/b4c31d6f8fbf/e-77-00703-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/7e65c66fbf41/e-77-00703-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/ee2f1feea0a2/e-77-00703-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/9efb1b82effe/e-77-00703-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/47a4041a3cd0/e-77-00703-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/b4c31d6f8fbf/e-77-00703-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/835e/8382055/7e65c66fbf41/e-77-00703-fig5.jpg

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