Monomeric Au(II) complex with hematoporphyrin IX |
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| Affiliation: | 1. Faculty of Chemistry, University of Sofia, 1, J. Bourchier, Sofia 1164, Bulgaria;2. Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria;1. Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, C.P. 04510, Mexico, CDMX, Mexico;2. Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario S/N. Chihuahua, Chihuahua, C. P. 31125, Mexico;3. Red de Apoyo a la Investigación, Instituto Nacional de Ciencias Médicas y Nutrición SZ-Universidad Nacional Autónoma de México (CIC-UNAM), Ciudad de México, 14000, Mexico;1. Chemistry Department, University of Education, The University of DaNang, Ton Duc Thang 459, Da Nang, Viet Nam;2. Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium;3. Department of Cellular and Molecular Medicine, KU Leuven, Herestraat 49, Box 901, 3000 Leuven, Belgium;4. Belarusian State Technological University, Physics Department, Sverdlov Str., 13a, Minsk 220006, Belarus;1. Department of Mechanical engineering, Faculty of Engineering and Technology, University of Mazandaran, Babolsar, Iran;2. Department of Nanochemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran;3. Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran;1. Intelligent Energy, Charnwood Building, Holywell Park, Ashby Road, Loughborough, Leicestershire LE11 3GB, United Kingdom;2. Université de Lyon, Université Claude Bernard Lyon 1, Laboratoire Multimatériaux et Interfaces, UMR CNRS 5615, 69622 Villeurbanne cedex, France;3. Commissariat à l’Energie Atomique et aux Energies Alternatives de Grenoble (CEA), 17, Rue des Martyrs, 38054 Grenoble cedex 9, France;1. Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, México;2. Instituto Nacional de Ciencias Médicas y Nutrición SZ-Universidad Nacional Autónoma de México (CIC-UNAM), Ciudad de México, México |
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| Abstract: | A stable monomeric Au(II) complex has been synthesized in the course of the Au(III)–hematoporphyrin IX (Hp, I) interaction in aqueous alkaline solution. Distorted octahedral structure with (dxy)1 ground state and general formula Au(II)Hp-2H·2H2O are suggested for the complex. Gold is located in the hole of the porphyrin macrocycle and the water molecules are in axial position. The +2 oxidation state of gold was proven by the corresponding EPR signal and the μeff value of 2.20 BM obtained. The α2 value of 0.56 indicated a high degree of covalency of the gold–nitrogen bonds. |
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