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（正己基）氮化硼（BH）（n = Ho、Tm和Yb）的合成、多晶型及热分解过程

Synthesis, Polymorphism and Thermal Decomposition Process of (n-CH)N(BH) for = Ho, Tm and Yb.

作者信息

Wegner Wojciech, Jaroń Tomasz

机构信息

College of Inter-Faculty Individual Studies in Mathematics and Natural Sciences, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland.

Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland.

出版信息

Materials (Basel). 2021 Mar 10;14(6):1329. doi: 10.3390/ma14061329.

DOI:10.3390/ma14061329
PMID:33801892
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7999646/
Abstract

In total, three novel organic derivatives of lanthanide borohydrides, n-ButN(BH) (TBAB), = Ho, Tm, Yb, have been prepared utilizing mechanochemical synthesis and purified via solvent extraction. Studies by single crystal and powder X-ray diffraction (SC-XRD and PXRD) revealed that they crystalize in two polymorphic forms, α- and β-TBAB, adopting monoclinic (2/c) and orthorhombic (nna) unit cells, previously found in TBAYB and TBAScB, respectively. Thermal decomposition of these compounds has been investigated using thermogravimetric analysis and differential scanning calorimetry (TGA/DSC) measurements, along with the analysis of the gaseous products with mass spectrometry (MS) and with analysis of the solid decomposition products with PXRD. TBAHoB and TBAYbB melt around 75 °C, which renders them new ionic liquids with relatively low melting points among borohydrides.

摘要

总共利用机械化学合成法制备了三种新型镧系硼氢化物有机衍生物，即正丁基N(BH)（TBAB），其中 = Ho、Tm、Yb，并通过溶剂萃取进行了纯化。单晶和粉末X射线衍射（SC-XRD和PXRD）研究表明，它们以两种多晶型形式结晶，即α-和β-TBAB，分别采用单斜晶系（2/c）和正交晶系（nna）晶胞，这两种晶胞先前分别在TBAYB和TBAScB中发现。使用热重分析和差示扫描量热法（TGA/DSC）测量对这些化合物的热分解进行了研究，并通过质谱（MS）分析气态产物，通过PXRD分析固体分解产物。TBAHoB和TBAYbB在75°C左右熔化，这使它们成为硼氢化物中熔点相对较低的新型离子液体。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a4f/7999646/4de45ac3b1d1/materials-14-01329-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a4f/7999646/a374cc3d2996/materials-14-01329-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a4f/7999646/0aa28b9d9b05/materials-14-01329-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a4f/7999646/4de45ac3b1d1/materials-14-01329-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a4f/7999646/a374cc3d2996/materials-14-01329-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a4f/7999646/0aa28b9d9b05/materials-14-01329-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a4f/7999646/4de45ac3b1d1/materials-14-01329-g003.jpg

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