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1.At R.T., upon excitation at 377 and 450 nm, a structured emission was observed at ca. 560 nm and 600 nm, and a shoulder appearing at ca. 660 nmThe vibronic progressional spacings of 1190 cm-1 and 1515 cm-1 are characteristics of aromatic ring stretching
2. In most cases, the emission spectra in solid states at 298 K exhibit well resolved vibronic-structured bands with vibrational progressional spacings in the range of 1160-1460 cm-1
3. the complexes showed well-resolved vibronic-structured emission bands at
approximately 530¨C543 nm and a low-energy emission band at approximately 630¨C648 nm. The vibrational progressional spacings of the high-energy band at approximately 1300 cm1
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