Citation: Wang CHEN, Guixian WU, Yingying XIONG, Ming CHENG, Mingming ZHOU, Hui ZHANG, Zhengyun LIANG, Dejin HUANG, Minghua CHEN. Crystal structures of complexes of cyclobutanocucurbit[5]uril with Na⁺/K⁺: Coordination state in different anionic environments[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(1): 161-169. doi: 10.11862/CJIC.20250195 shu

Crystal structures of complexes of cyclobutanocucurbit[5]uril with Na⁺/K⁺: Coordination state in different anionic environments

Wang CHEN ^{1, #} ,
Guixian WU ^{1, #} ,
Yingying XIONG ¹ ,
Ming CHENG ¹ ,
Mingming ZHOU ¹ ,
Hui ZHANG ¹ ,
Zhengyun LIANG ² ,
Dejin HUANG ¹ ,
Minghua CHEN ^1,,

1.
Chemistry and Biology College, Minzu Normal University of Xingyi, Xingyi, Guizhou 562400, China
2.
Medical Department, Southwest Guizhou Vocational and Technical College for Nationalities, Xingyi, Guizhou 562400, China

Corresponding author: Minghua CHEN, gui_zhou_chen@163.com
Received Date: 9 June 2025
Revised Date: 23 September 2025

Figures(6)

The complexes 1-4 of cyclobutanocucurbit[5]uril (CyB₅Q[5]) with Na⁺/K⁺ have been synthesized and characterized by single-crystal X-ray diffraction. The results show that although the inorganic salts are used when the cations are the same and the anions are different, in complex 1, Na⁺ closes one port of CyB₅Q[5] through Na—O seven coordination bonds to form a molecular bowl; in complex 3, Na⁺ completely closes the two ports of CyB₅Q[5] to form a molecular capsule with six Na—O coordination bonds; in complexes 2 and 4, the two ports of CyB₅Q[5] are completely closed to form K—O coordinated molecular capsules, but the K⁺ of complex 2 is six-coordinated and that of complex 4 is eight-/nine-coordinated. and complex 4 are connected by three oxygen bridges to form a 1D molecular chain.
- cucurbit[n]uril supramolecular chemistry,
- cyclobutanocucurbit[5]uril,
- cucurbit[n]uril-metal complexes
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Crystal structures of complexes of cyclobutanocucurbit[5]uril with Na+/K+: Coordination state in different anionic environments

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通讯作者: 陈斌, bchen63@163.com

Crystal structures of complexes of cyclobutanocucurbit[5]uril with Na⁺/K⁺: Coordination state in different anionic environments