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Title: | Rational design of a room temperature molecular spin switch. The light-driven coordination induced spin state switch (LD-CISSS) approach |
Authors: | Venkataramani, Sugumar |
Keywords: | Photochromic Ligand Paramagnetic State Nickel Complex |
Issue Date: | 2014 |
Publisher: | Royal Society of Chemistry |
Citation: | Dalton Transactions, 43(46), pp.17395-17405. |
Abstract: | Extensive use of quantum chemical calculations has been made to rationally design a molecule whose spin state can be switched reversibly using light of two different wavelengths at room temperature in solution. Spin change is induced by changing the coordination number of a nickel complex. The coordination number in turn is switched using a photochromic ligand that binds in one configuration and dissociates in the other. We demonstrate that successful design relies on a precise geometry fit and delicate electronic tuning. Our designer complex exhibits an extremely high long-term switching stability (more than 20 000 cycles) and a high switching efficiency. The high-spin state is extraordinarily stable with a half-life of 400 days at room temperature. Switching between the dia- and paramagnetic state is achieved with visible light (500 and 430 nm). The compound can also be used as a molecular logic gate with light and pH as input and the magnetic state as non-destructive read-out. |
Description: | Authors sequences are not necessary in order Only IISERM authors are available in the record. |
URI: | https://pubs.rsc.org/en/content/articlelanding/2014/dt/c4dt03048f#!divAbstract http://hdl.handle.net/123456789/2753 |
Appears in Collections: | Research Articles |
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