首页|Confocal Raman microscopic evidence for cyclic water Pentamer, at high temperatures in a supramolecular host of [Cu(cyclam)(N-3)(2)]center dot 4H(2)O

Confocal Raman microscopic evidence for cyclic water Pentamer, at high temperatures in a supramolecular host of [Cu(cyclam)(N-3)(2)]center dot 4H(2)O

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Here, we report the existence of a pentameric water cluster in the host framework of [Cu(cyclam)(N-3)(2)]center dot 4H(2)O, that is stable upto 167 degrees C, well above the boiling point of water. The pentameric cluster structure embedded in the host framework is evident from the single crystal studies. The high thermal stability is confirmed by TGA and temperature dependent confocal Raman microscopic studies, where loss of water bands is well captured between 167 and 170 degrees C, besides its existence through SCXRD studies. To the best of our knowledge, this is the first report where temperature dependent confocal Raman microscopic investigation is used to study the stability of water in crystal environment. The study promises that temperature dependent confocal Raman microscopy can be an efficient tool to investigate the existence and stability of small water clusters, precisely in restricted environments. (C) 2022 Elsevier B.V. All rights reserved.

Water PentamerCu-Cyclam hostHigh thermal stabilityConfocal Raman Microscopic studiesSingle crystal Xray studiesSTRUCTURE VALIDATIONCLUSTERSHYDROGENSPECTRUMCHAIN1D

Verma, Abhineet、Bhuvanesh, Nattamai、Reibenspies, Joseph、Saha, Satyen、Sunkari, Sailaja S.

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Banaras Hindu Univ

Texas A&M Univ

2022

Spectrochimica acta

Spectrochimica acta

ISSN:1386-1425
年,卷(期):2022.274
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