Synthesis of unusual mixed ligand tellurium(IV) dithiocarbamates with perchlorate. Crystal and molecular structure of perchloratotris(diethyldithiocarbamato)tellurium(IV) |
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| Institution: | 1. Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany;2. Institute of Reconstructive Neurobiology, University of Bonn, Bonn, Germany;3. Sanofi-Aventis Deutschland GmbH, Industriepark Hoechst, Frankfurt am Main, Germany;1. Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei 430062, China;2. Medical Informatics Research Center, Shantou University Medical College, Shantou 515041, China;1. Department of Chemistry, 467 Hunter Laboratories, Clemson University, Clemson, SC 29634, USA;2. Eukaryotic Pathogens Innovation Center, Department of Genetics and Biochemistry, 249 Life Sciences Building, Clemson University, Clemson, SC 29634, USA;3. Department of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, 777 Highland Ave., Madison, WI 53705-2222, USA;1. School of Pharmacy, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do 440-746, Republic of Korea;2. College of Pharmacy, Catholic University of Daegu, Gyeongsan, Gyeongbuk, Republic of Korea;3. College of Pharmacy, Dankook University, Cheonan, Chungnam, Republic of Korea;1. Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho, South Africa;2. Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa;3. Federal College of Education, P.M.B. 1026, Okene, Kogi-State, Nigeria;4. Department of Chemistry, Alex Ekwueme Federal University Ndufu-Alike (AE-FUNAI), PMB 1010, Abakaliki, Ebonyi State, Nigeria;5. Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Enugu State, Nigeria;6. School of Science, University of Waikato, Private Bag 3105, Hamilton, New Zealand;7. Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa |
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| Abstract: | Synthetic and structural aspects of perchlorato complexes of tellurium(IV) with different dithiocarbamates (dtc) (R1R2NCS2) where R1 = R2 = methyl, ethyl, n-propyl, i-propyl; R1R2 = (CH2)5(piperidine), C2H4OC2H4 (morpholine)] are reported. The crystal structure of TeL3ClO4 (where L = diethyl dtc) has been determined. The crystals of the complex are monoclinic, space group P21/n, a = 11.379(3), b = 17.745(7), c = 14.016(8) Å, γ = 103.30(2)°, V = 2754.2 Å3, F(000) = 1352, DX = 1.61 mg M−3. The final R and Rw values are 0.047 and 0.058, respectively for 5224 unique reflections. Tellurium displays a distorted dodecahedral stereochemistry formed by two interposing trapezoids, one resulting from the four sulphurs of two L groups and the other from the two sulphurs of the third L and the two oxygens of the perchlorate ion. The average TeS distance 2.648(2) Å is close to that reported in other tris(dithiocarbamato)tellurium(IV) complexes. The perchlorate is weakly coordinated to tellurium(IV), with the average TeO distance being 2.994(8) Å. The unusual coordination of perchlorate (as a bidentate ligand) to tellurium(IV) dithiocarbamate is reported for the first time. |
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