A matrix isolation i.r. study on molecular complexes of hexamethylbenzene and tetracyanoethylene |
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| Affiliation: | 1. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;2. Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;1. Department of Pharmaceutical Sciences, College of Pharmacy, Al Maarefa University, Riyadh 13713, Saudi Arabia;2. Department of Chemistry, University of Gujrat, Gujrat-50700, Pakistan;3. Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;4. Department of Chemistry, University of Okara, Okara 56300, Pakistan;5. Department of Chemistry, Govt. College Women University, Sialkot-51300, Pakistan;1. College of Chemical Engineering, Institute of Pharmaceutical Engineering Technology and Application, Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Sichuan University of Science & Engineering, Zigong 643000 Sichuan, PR China;2. Computational and Bio-Simulation Research Group, University of Calabar, Calabar, Nigeria;3. Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar, Nigeria;4. School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000 Sichuan, PR China;5. Key Laboratory of Material Corrosion and Protection of Sichuan Province, Zigong 643000 Sichuan, PR China;6. Department of Chemical Sciences, Clifford University, Owerrinta, Nigeria |
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| Abstract: | The i.r. spectra of Ar and N2 matrices containing trapped hexamethylbenzene (HMB), tetracyanoethylene (TCNE) and their complex species are presented. The formation of complex species (essentially the 1:1 complex) is indicated by the arising of new bands at 1295 cm−1 (the A1g CCH3 stretching of HMB) and at 1546 cm−1 (the CC stretching of TCNE). However, the comparison with the spectra of the crystalline 1:1 and 2:1 complexes (HMB:TCNE), indicates that the contribution of vibronic mechanisms to band intensities is greatly reduced by the isolation of complex units in the matrix. |
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