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Organometallic MFU-4l(arge) Metal–Organic Frameworks
Organometallics ( IF 2.5 ) Pub Date : 2019-07-29 , DOI: 10.1021/acs.organomet.9b00297
Richard Röß-Ohlenroth 1 , Björn Bredenkötter 1 , Dirk Volkmer 1
Affiliation  

Ligand exchange reactions at the Kuratowski-type secondary building unit in MFU-4l(arge) metal–organic frameworks (MOFs) result in organometallic porous compounds with metal–carbon bonds of the general formula [Zn5LxCl4–x(BTDD)3] (4 ≥ x > 3; L = methanido, ethanido, n-butanido, tert-butanido, 3,3-dimethyl-1-butyn-1-ido; H2-BTDD = bis(1H-1,2,3-triazolo[4,5-b][4′,5′-i])dibenzo[1,4]dioxin) and [Zn1.5Co3.5Me3.1Cl0.9(BTDD)3]. The compounds were characterized by FT-IR, EDX spectroscopy, X-ray powder diffraction (XRPD), and argon adsorption measurements. VT-XRPD, TGA, and TG-MS measurements were applied to investigate the thermal and oxidative stability of the organometallic Zn-MFU-4l derivatives. The hydrolytic stability of all compounds was examined, and a conversion of the methanide to hydroxide ligands is observed in the cobalt-containing compound. DRIFTS measurements of the resulting framework with the composition [Zn1.4Co3.6(OH)3.1Cl0.9(BTDD)3] revealed a mechanism of carbon dioxide binding similar to that of carbonic anhydrase.

中文翻译:

有机金属MFU-4l(大型)金属有机框架

在MFU-4 l(大型)金属-有机骨架(MOF)中的Kuratowski型二级建筑单元上进行的配体交换反应导致具有金属碳键的有机金属多孔化合物的通式为[Zn 5 L x Cl 4– x( BTDD)3 ](4≥ X > 3; L = methanido,ethanido,ñ -butanido,-butanido,3,3-二甲基-1-丁炔-1- IDO; H 2 -BTDD =双(1- ħ -1 ,2,3-三唑并[4,5- b ] [4',5'- i ])二苯并[1,4]二恶英)和[Zn 1.5 Co 3.5 Me 3.1 Cl 0.9(BTDD)3 ]。通过FT-IR,EDX光谱,X射线粉末衍射(XRPD)和氩气吸附测量对这些化合物进行表征。VT-XRPD,TGA和TG-MS测量用于研究有机金属Zn-MFU-4 l衍生物的热稳定性和氧化稳定性。检查了所有化合物的水解稳定性,并在含钴化合物中观察到了甲烷化物向氢氧化物配体的转化。用组成[Zn 1.4 Co 3.6(OH)3.1 Cl 0.9(BTDD)3 ]组成的骨架的DRIFTS测量显示出二氧化碳结合的机理类似于碳酸酐酶。
更新日期:2019-07-30
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