Photoreversible Zn
<sup>2+</sup>
Ion Transportation Across an Interface Using Ion‐Chelating Substituted Photochromic 3,3′‐Indolospirobenzopyrans: Steric and Electronic Controlling Effects
作者:Craig J. Roxburgh、Peter G. Sammes、Ayse Abdullah
DOI:10.1002/ejic.200800614
日期:2008.11
been realised. Additionally, the spiropyran ring-opening↔closing reactions of two skeletally identical spirobenzopyrans 4 and 5, but possessing "electronically-modifying" 5-trifluoromethyl-substitutents have been studied by 1 H NMR spectroscopy: this has enabled us to realise the additional biasing, on the ring-opening↔closing process, excerpted on these systems through both selectively placed, inductively
Novel Spiropyran Based Composition and Application Thereof as Security Tag
申请人:Council of Scientific and Industrial Research
公开号:US20180163053A1
公开(公告)日:2018-06-14
The present invention discloses the spiropyran compound of formula (I), process for preparation thereof and a composition comprising spiropyran compound of formula (I) on a support, wherein said support selected from polymers such as Poly (ethylene oxide), Polydimethylsiloxane (PDMS), Ethylene propylene diene monomer (EPDM).
Structures of lithium salts of 2,3,3-trimethylindolenine and its 5-methoxy derivative in solution and the solid state
作者:L. M. Jackman、L. M. Scarmoutzos、B. D. Smith、Paul G. Williard
DOI:10.1021/ja00226a021
日期:1988.8
solvents the salts, like those of aromatic secondary amines,” are monomeric or dimeric tight ion pairs, the structures of which determine reactivity and regioand stereochemistry. In order to extend our studies1* of the relation of the solution structure of lithium salts involving organic ambident anions to reactivity and regiochemistry to include imine anions, we have chosen the salts la and b since
Spiropyran based composition and application thereof as security tag
申请人:Council of Scientific and Industrial Research
公开号:US10723883B2
公开(公告)日:2020-07-28
The present invention discloses the spiropyran compound of formula (I), process for preparation thereof and a composition comprising spiropyran compound of formula (I) on a support, wherein said support selected from polymers such as Poly (ethylene oxide), Polydimethylsiloxane (PDMS), Ethylene propylene diene monomer (EPDM).