Structures and Ligand Exchange of N-Confused Porphyrin Dimer Complexes with Group 12 Metals

Inorganic Chemistry

Volumn 43, Issue 5, 2004, Pages 1618-1624

  Furuta, Hiroyuki ^a,b   Morimoto, Tatsuki ^a,c   Osuka, Atsuhiro ^c  

^a KYUSHU UNIVERSITY   (Japan)

^b JAPAN SCIENCE AND TECHNOLOGY AGENCY   (Japan)

^c KYOTO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

CADMIUM DERIVATIVE; DIMER; MERCURY DERIVATIVE; METAL COMPLEX; METALLOPORPHYRIN; MONOMER; N CONFUSED 5,20 DIPHENYLPORPHYRIN; N CONFUSED PORPHYRIN; PORPHYRIN DERIVATIVE; UNCLASSIFIED DRUG; ZINC COMPLEX;

ABSORPTION SPECTROSCOPY; ARTICLE; BINDING SITE; COMPLEX FORMATION; CRYSTAL STRUCTURE; DIMERIZATION; EQUILIBRIUM CONSTANT; METAL BINDING; PROTON NUCLEAR MAGNETIC RESONANCE; STRUCTURE ANALYSIS; X RAY CRYSTALLOGRAPHY;

EID: 1542347644     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic035294e     Document Type: Article

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24. 3 mean plane and the outer α-carbon of the opposite NCP for the Zn complex (7) are 3.005(9) and 3.082(9) Å, which are shorter than those of the Cd complex (8), 3.20(2) and 3.12(2) Å.
25. Cd-H = 4.4 Hz) was reported in the tetraphenyl-p-benziporphyfin: Stȩpień, M.; Latos-Grazyński, L. J. Am. Chem. Soc. 2002, 124, 3838-3839.
26. Although MN is equivalent to Mc, the two center metals are distinguished here as a matter of convenience.
27. The formation of complexes 7 and 8 in solution was also supported from vapor pressure osmometry (VPO), which showed the dimer molecular weight at 976 ± 78 (calcd 1052) and 1101 ± 88 (calcd 1146) g/mol, respectively.
28. 4a
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32. The inner CH signals of (Zn-1) in (Zn-1)(Cd-1) and (Zn-2) in (Zn-2)(Cd-2) were observed at -3.79 and -3.66 ppm at 25°C, respectively. On the other hand, the inner CH signals of (Cd-1) in (Zn-1)(Cd-1) and (Cd-2) in (Zn-2)(Cd-2) were observed at -4.38 and -4.25 ppm at 25 °C, respectively. Assuming that the chemical shift difference is mainly due to the change of meso-aryl groups, the signal at -3.66 ppm in Figure 5 is assignable to the inner CH proton of (Zn-2) and the signal at -4.36 ppm to that of (Cd-1). See the Supporting Information.
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