Application of Fourier Transform Infrared Photacousitc Spectroscopy to Porphyrin Studies(Ⅱ)─FTIR-PAS of Lanthanide Acetylacetonate-meso-Tetra-(Para-methoxyphenyl) Porphyrin Coordination Compounds

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (2): 257.

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Application of Fourier Transform Infrared Photacousitc Spectroscopy to Porphyrin Studies(Ⅱ)─FTIR-PAS of Lanthanide Acetylacetonate-meso-Tetra-(Para-methoxyphenyl) Porphyrin Coordination Compounds

SHI Tong-Shun, LIU Guo-Fa, CAO Xi-Zhang

Department of Chemistry, Jilin University, Changchun, 130023

Received:1993-04-02 Revised:1993-11-18 Online:1994-02-24 Published:1994-02-24

Abstract

Abstract: The Fourier transform infrared photoacoustic spectra of tetra-(para-methoxyphenyl)porphyrin and its coordination compounds LnT(ρ-CH₃O)PPacac(Ln : Sm, Gd, Tb, Dy, Ho,Er, Tm, Yb, Lu)in the range of 3600～225 cm^-1 were measured and investigated.Because of the coordination bonding between the rare earth ion and nitrogen in T(ρ-CH₃O)PPacac forms,the band near 400 cm^-1,M-Ostretching vibration on the acetylacetonate ring,becomes weaker,this band is shifted to the lower wavenumber.The bands at 3318.0 and 968.4 cm^-1, PN─H stretching vihration, disppears upon complex formation, the vibration coupling between the M-N stretching and the ring deformation appears.

Key words: Infrared photoacoustic spectrum, Rare earth ion, p-Methoxyphenyl porphyrin

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SHI Tong-Shun, LIU Guo-Fa, CAO Xi-Zhang . Application of Fourier Transform Infrared Photacousitc Spectroscopy to Porphyrin Studies(Ⅱ)─FTIR-PAS of Lanthanide Acetylacetonate-meso-Tetra-(Para-methoxyphenyl) Porphyrin Coordination Compounds[J]. Chem. J. Chinese Universities, 1994, 15(2): 257.

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Application of Fourier Transform Infrared Photacousitc Spectroscopy to Porphyrin Studies(Ⅱ)─FTIR-PAS of Lanthanide Acetylacetonate-meso-Tetra-(Para-methoxyphenyl) Porphyrin Coordination Compounds

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