An ab initio CI study of electronic spectra of substituted free-base porphyrins

被引:12
作者
Yamamoto, S
Diercksen, GHF
Karelson, M
机构
[1] Univ Tartu, Dept Chem, EE-51014 Tartu, Estonia
[2] Max Planck Inst Astrophys, D-85740 Garching, Germany
[3] Chukyo Univ, Fac Liberal Arts, Aichi 47003, Japan
关键词
D O I
10.1016/S0009-2614(00)00093-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ab initio calculations at the CI (singles) level of theory were carried out for the ground state and the singlet and triplet excited states of substituted free-base porphyrins. The results predict a substantial red-shift in the long-wavelength electronic spectra of compounds due to the push-pull substitution at the pi-system of the porphyrin ring or due to the substitution by a nitro-group. The compounds and their derivatives may be good candidates for deep-penetrating photodynamic therapeutic agents. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:590 / 596
页数:7
相关论文
共 34 条
[21]   THEORETICAL TREATMENT OF SOLVENT EFFECTS ON ELECTRONIC SPECTROSCOPY [J].
KARELSON, MM ;
ZERNER, MC .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (17) :6949-6957
[22]   THEORETICAL DETERMINATION OF THE ELECTRONIC-SPECTRUM OF FREE-BASE PORPHIN [J].
MERCHAN, M ;
ORTI, E ;
ROOS, BO .
CHEMICAL PHYSICS LETTERS, 1994, 226 (1-2) :27-36
[23]   The biology of photodynamic therapy [J].
Moore, JV ;
West, CML ;
Whitehurst, C .
PHYSICS IN MEDICINE AND BIOLOGY, 1997, 42 (05) :913-935
[24]   ABINITIO SCF-CL CALCULATION ON FREE BASE PORPHIN AND CHLORIN - THEORETICAL-ANALYSIS ON INTENSITIES OF THE ABSORPTION-SPECTRA [J].
NAGASHIMA, U ;
TAKADA, T ;
OHNO, K .
JOURNAL OF CHEMICAL PHYSICS, 1986, 85 (08) :4524-4529
[25]   Excited and ionized states of free base porphin studied by the symmetry adapted cluster-configuration interaction (SAC-CI) method [J].
Nakatsuji, H ;
Hasegawa, JY ;
Hada, M .
JOURNAL OF CHEMICAL PHYSICS, 1996, 104 (06) :2321-2329
[26]   Photophysical and photobiological processes in the photodynamic therapy of tumours [J].
Ochsner, M .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 1997, 39 (01) :1-18
[27]  
RODGERS MAJ, 1985, PRIMARY PHOTO PROCES, P1
[28]   PHOTOPHYSICAL PROPERTIES AND PHOTODYNAMIC ACTIVITY INVIVO OF SOME TETRAPYRROLES [J].
ROEDER, B ;
NAETHER, D ;
LEWALD, T ;
BRAUNE, M ;
NOWAK, C ;
FREYER, W .
BIOPHYSICAL CHEMISTRY, 1990, 35 (2-3) :303-312
[29]   EFFECT OF SOLVENT ON THE RADIATIVE DECAY OF SINGLET MOLECULAR-OXYGEN (A(1)DELTA(G)) [J].
SCURLOCK, RD ;
NONELL, S ;
BRASLAVSKY, SE ;
OGILBY, PR .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (11) :3521-3526
[30]  
*SEM INC, AMPAC 6 0 GRAPH US I