Cis- and trans-[SnR2] configurational isomers in diorganotin(IV) complexes containing mono or bidentate N-donor ligands
The reaction of diorganotin(IV) complexes SnR2Cl2 (R=Et, Ph) with the bidentate pyridyl ligand of 4,4′-di-tert-butyl-2,2′-bipyridine (bu2bpy) or phendione (phendione=1,10-phenanthroline-5,6-dione) resulted in the formation of the hexa-coordinated 1:1 adducts of [SnR2Cl2(NN] {R=Et, NN=bu2bpy (1); R=E...
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
19 July 2013
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| In: |
Polyhedron
Year: 2013, Volume: 63, Pages: 111-116 |
| DOI: | 10.1016/j.poly.2013.07.011 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.poly.2013.07.011 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0277538713005366 
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| Author Notes: | Badri Z. Momeni, Sadegh Kheirandish, Niloofar Aghamohammadi, Vahid Noroozi, Behrouz Notash, Frank Rominger |
| Summary: | The reaction of diorganotin(IV) complexes SnR2Cl2 (R=Et, Ph) with the bidentate pyridyl ligand of 4,4′-di-tert-butyl-2,2′-bipyridine (bu2bpy) or phendione (phendione=1,10-phenanthroline-5,6-dione) resulted in the formation of the hexa-coordinated 1:1 adducts of [SnR2Cl2(NN] {R=Et, NN=bu2bpy (1); R=Et, NN=phendione (2); R=Ph, NN=bu2bpy (3)}. On the other hand, the reaction of SnPh2Cl2 with the corresponding monodentate ligand of 4-tert-butylpyridine (bupy) affords the 1:2 adduct of [SnPh2Cl2(bupy)2] (4). The solid state X-ray determination of complex [SnEt2Cl2(bu2bpy)] (1) revealed that the complex 1 contains the hexa- coordinated tin(IV) atom in an octahedral geometry with the trans-[SnEt2] configuration while the X-ray crystal structure determination of complex [SnPh2Cl2(bu2bpy)] (3) reveals that the tin atom is hexa-coordinated in a distorted octahedral geometry with an unusual feature of the cis-[SnPh2] configuration. On the other hand, two carbon, two chlorine and two nitrogen atoms from two pyridyl ligands form an octahedral geometry around tin(IV) atom with trans-C2, trans-N2 and trans-Cl2 configurations in [SnMe2Cl2(bupy)2] (5). The resulting products have been fully characterized by elemental analysis, multinuclear NMR (1H, 13C, 119Sn) and 2D NMR (HH- COSY, 1H-13C HMQC) spectroscopy. |
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| Item Description: | Im Titel ist die Zahl "2" tiefgestellt Gesehen am 01.06.2021 |
| Physical Description: | Online Resource |
| DOI: | 10.1016/j.poly.2013.07.011 |