Effect of the ruffled porphyrin ring on electronic structures: structure and characterization of [Fe(TalkylP)(OClO3)] and [Fe(TPrP)(THF)2]ClO4 (alkyl = Ethyl, Et and n-Propyl, Pr)

被引:1
作者
Li, Ming [1 ]
Oliver, Allen G. [1 ]
Neal, Teresa J. [1 ]
Schulz, Charles E. [2 ]
Scheidt, W. Robert [1 ]
机构
[1] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA
[2] Knox Coll, Dept Phys, Galesburg, IL 61401 USA
基金
美国国家卫生研究院; 美国国家科学基金会;
关键词
iron (III); intermadete spin; weak-field ligands; SPIN (MESO-TETRAALKYLPORPHYRINATO)IRON(III) COMPLEXES; SADDLE-SHAPED PORPHYRIN; MOLECULAR-STRUCTURE; FERRIC PORPHYRIN; CYTOCHROME-C; C-13; NMR; STATE; CRYSTAL; HEME; CONFIGURATION;
D O I
10.1142/S1088424612501362
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report the synthesis of Fe(TalkylP)(OClO3)] (alkyl = ethyl and propyl) and [Fe(TPrP) (THF)(2)]ClO4, which are characterized by UV-vis, EPR, X-ray crystallography, and solid-state magnetic susceptibilities. The macrocycles of all three complexes are ruffled, all of the structural features for [Fe(TEtP(OClO3)] and [Fe(TPrP)(OClO3)] are characteristic of the nearly pure S = 3/2 state, while the structural parameters for [Fe(TPrP)(THF)(2)]ClO4 feature a pure intermediate-spin (S = 3/2) state, which are all consistent with EPR and magnetic data. It is clear from these studies that the ruffled conformation plays a significant role in affecting the extent of S = 3/2 character.
引用
收藏
页码:118 / 124
页数:7
相关论文
共 54 条
[1]   ON PREPARATION OF METALLOPORPHYRINS [J].
ADLER, AD ;
LONGO, FR ;
KAMPAS, F ;
KIM, J .
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1970, 32 (07) :2443-&
[2]   Molecular structure of Fe(III) 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetraphenylporphyrin perchlorate:: a saddle-shaped porphyrin with an intermediate S=3/2 spin state [J].
Barkigia, KM ;
Renner, MW ;
Fajer, J .
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 2001, 5 (04) :415-418
[3]   Synthesis, characterization, and molecular structures of diethylnitrosamine metalloporphyrin complexes of iron, ruthenium, and osmium [J].
Chen, L ;
Yi, GB ;
Wang, LS ;
Dharmawardana, UR ;
Dart, AC ;
Khan, MA ;
Richter-Addo, GB .
INORGANIC CHEMISTRY, 1998, 37 (18) :4677-4688
[4]   SYNTHESIS, STRUCTURE, AND CHARACTERIZATION OF 5-COORDINATE AQUO(OCTAETHYLPORPHINATO)IRON(III) PERCHLORATE [J].
CHENG, B ;
SAFO, MK ;
OROSZ, RD ;
REED, CA ;
DEBRUNNER, PG ;
SCHEIDT, WR .
INORGANIC CHEMISTRY, 1994, 33 (07) :1319-1324
[5]   Control of spin state by ring conformation of iron(III) porphyrins. A novel model for the quantum-mixed intermediate spin state of ferric cytochrome c' from photosynthetic bacteria [J].
Cheng, RJ ;
Chen, PY ;
Gau, PR ;
Chen, CC ;
Peng, SM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (10) :2563-2569
[6]  
Cheng RJ, 1999, CHEM-EUR J, V5, P1708, DOI 10.1002/(SICI)1521-3765(19990604)5:6<1708::AID-CHEM1708>3.0.CO
[7]  
2-Z
[8]  
Earnshaw A, 1968, INTRO MAGNETOCHEMIST
[9]  
EMA T, 1994, ANGEW CHEM INT EDIT, V33, P1879, DOI 10.1002/anie.199418791
[10]   Reversal of H2O and OH- ligand field strength on the magnetochemical series relative to the spectrochemical series.: Novel 1-equiv water chemistry of iron(III) tetraphenylporphyrin complexes [J].
Evans, DR ;
Reed, CA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (19) :4660-4667