Chemistry 153 â Advanced Inorganic Chemistry Problem Set 5 (due ...
Chemistry 153 â Advanced Inorganic Chemistry Problem Set 5 (due ...
Chemistry 153 â Advanced Inorganic Chemistry Problem Set 5 (due ...
- No tags were found...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
2. The room-temperature absorption spectrum of asingle crystal of K 4 Pt 2 (H 2 P 2 O 5 ) 4·2H 2 O (K 4 Pt-POP) is shown on the right. Pt-POP 4- also isluminescent, displaying intense greenphosphorescence with a maximum near 500nm.At cryogenic temperatures, the absorptionspectrum of the Ba 2+ salt of Pt-POP 4 developsrich vibrational fine structure in the lowestenergy absorption band (bottom of page). Thevibrational fine structure is associated with anexcited-state distortion along the Pt-Pt stretchingcoordinate. The vibronic peak positions for thelowest energy absorption band are given in thetable below.v , nm0 476.01 472.52 469.13 465.74 462.45 459.26 456.17 452.98 449.89 446.710 443.511 440.412 437.413 434.414 431.515 428.716 425.817 423.218 420.319 417.5