exam3 - MIT OpenCourseWare http:/ocw.mit.edu 5.04...

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MIT OpenCourseWare http://ocw.mit.edu 5.04 Principles of Inorganic Chemistry II Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
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Chemistry 5.04 (F08) Exam 3 100 points total 1. ( 29 pts ) The simplest stable phosphorous sulfide, tetraphosphourous trisulfide, P 4 S 3 is shown below. The bands observed in the IR and Raman spectra of P 4 S 3 in gas phase, melt and solution are listed. Raman Data: Δ / cm -1 Infrared Data: ν / cm -1 Gas (550 °C) Melt (250 °C) CS 2 (25 °C) 142 184 187 218 221 218 223 286 292 287 291 339 347 339 343 414 420 420 423 438 446 440 444 a. ( 20 pts ) Determine the normal modes of vibration for P 4 S 3 and how they transform.
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b. ( 9 pts ) Which are Raman and IR active?
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( 41 pts ) A molecular orbital analysis of transition metal dihydrogen omplexes provides critical insight into the bonding interactions between etals and hydrogen and established an elegant framework in which the eactivity between H 2 and transition metal complexes can be interpreted. . ( 10 pts
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This note was uploaded on 11/27/2011 for the course CHEMICAL E 20.410j taught by Professor Rogerd.kamm during the Spring '03 term at MIT.

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exam3 - MIT OpenCourseWare http:/ocw.mit.edu 5.04...

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