Preparation and structural characterization of mercury 21-thiaporphyrin complex: HgII(Stpp)Cl (Stpp=tetraphenyl-21-thiaporphyrin anion) |
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| Affiliation: | 1. Department of Chemistry, National Chung-Hsing University, Taichung 402, Taiwan, ROC;2. Chung Hwa College of Medical Technology, Tainan 717, Taiwan, ROC;3. Department of Chemistry, National Tsing-Hua University, Hsin-Chu 300, Taiwan, ROC;4. Department of Chemistry, National Taiwan University and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 107, Taiwan, ROC;1. Department of Physics, Nabadwip Vidyasagar College, Nabadwip, West Bengal, 741302, India;2. Department of Physics, Assam University, Silchar, 788011, India;3. Department of Physics, Nagaland University, Nagaland, 797004, India;1. National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova sq., Moscow 123182, Russia;2. Skobeltsyn Institute of Nuclear Physics, Moscow State University, 1(2), Leninskie gory, GSP-1, 119991, Moscow, Russia;3. National Research University “Moscow Power Engineering Institute”, 14, Krasnokazarmennaya St., Moscow 111250, Russia;4. Institute of Applied Mechanics of Russian Academy of Sciences, Leningradsky prt 7, Moscow 125040, Russia;1. Laboratory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte, 7021 Zarzouna, Tunisia;2. Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland;1. Universität Wien, Fakultät für Physik, Währinger Straße 17, A-1090, Vienna, Austria;2. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstr. 400, 01328, Dresden, Germany;3. Technische Universität Berlin, Zentrum für Astronomie und Astrophysik, Hardenbergstraße 36, 10623, Berlin, Germany;4. Department of Nuclear Physics, Australian National University, Canberra, ACT, 2601, Australia |
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| Abstract: | Treatment of tetraphenyl-21-thiaporphyrin (StppH) with Hg(OAc)2 in CH2Cl2 yields diamagnetic HgII(Stpp)Cl complex. The coordination sphere around Hg2+ in the monomeric molecule is described as a five-coordinate distorted trigonal bipyramid with the bonding to the three pyrrole nitrogens Hg(1)–N=2.104(4), 2.626(4), 2.640(4) Å], the thiophene sulfur Hg(1)–S=2.801(1) Å], and one axial chloride ligand Hg(1)–Cl(1)=2.318(1) Å]. The plane of the three pyrrole nitrogen atoms i.e., N(1), N(2), N(3)] bonded to Hg2+ is adopted as a reference plane 3N. Because of its larger size, the Hg2+ is considerably out of the 3N plane; its displacement of 1.41 Å is in the same direction as that of the apical Cl− ligand. The thiophene ring is slightly folded so that the dihedral angle between the C(13)–C(14)–C(15)–C(16) and C(13)–S(1)–C(16) planes is 7.3°. |
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