Titlebook: Crystalline State Photoreactions; Direct Observation o Yuji Ohashi Book 2014 Springer Japan 2014 Crystalline state photoreaction.Excited-st

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d figures of the molecular structures, with more than 200 figures. The book is an indispensable resource not only for organic, inorganic and physical chemists but also for graduate students, as it furnishes more than 300 references..978-4-431-56129-3978-4-431-54373-2

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Chapter 5: From Ground to Background X-rays. The unstable structures returned to the original one when the crystals were kept at room temperature in the dark or was irradiated with longer wavelengths. Although the molecular excitation due to photo-irradiation is not exactly a reversible reaction, the unstable excited structure can be

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Chapter 4: Action and the Pragmatic Maxim. The alkyl group with the modified reaction cavity in the acid–base complex revealed the different reactivity. When the bulky substituents are inserted to the cobaloxime moiety, the size and shape of the reaction cavity are largely changed. The completely different reaction process and reaction rate can be observed.

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Joachim Schwass,Anne-Catrin Glemserng the size and shape of the reaction cavity. For the bulkier (methoxycarbonyl)ethyl groups, not only the inversion of the chiral carbon atom bonded to the cobalt atom but also the .. transformation of the methoxyl group occurs cooperatively. Moreover, solvent molecules in a crystal play an important role in racemization.

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Chapter 4: Action and the Pragmatic Maximup. For the 1,2-bis(ethoxycarbonyl)ethyl group, only the two bonds connecting the chiral carbon of the produced radical rotated and opposite side of the radical made a bond to the cobalt atom. Such a two-bond rotation, which is called “hula-twist” as observed in rhodopsin, may be caused by long substituents bonded to the carbon radical.