Weak eta(2)-C-H center dot center dot center dot Hg interactions. Crystal structures of Hg(II) 2-N substituted N-confused porphyrin: Hg(2-NCH2-p-C6H4-CH3-21-H-NCTPP)I and Hg(2-NCH2-p-C6H4-isoC(3)H(7)-21-H-NCTPP)I center dot C6H5CH3

• Published in: Polyhedron Vol. 130; pp. 30 - 39
• Main Authors: Lin, Hsiang-Yin, Lin, Chun-Yeh, Chiu, Chun-Chia, Li, Hsueh-Ju, Chen, Jyh-Horung, Wang, Shin-Shin, Tung, Jo-Yu
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier 07.07.2017
• Subjects: Chemistry; Chemistry, Inorganic & Nuclear; Crystallography; Physical Sciences; Science & Technology; Mercury(II) N-confused porphyrin; MERCURY; Platinum(II) N-confused porphyrin; Agostic interaction; X-ray diffraction; ISOMER; Palladium(II) N-confused porphyrin; METAL-COMPLEXES
• ISSN: 0277-5387
• DOI: 10.1016/j.poly.2017.03.057

The crystal structures of 2-aza-2-[p-(isopropyl)benzyl]-5,10,15,20-tetraphenyl-21-carbaporphyrinato-N, N',N")palladium(II) [Pd (2-NCH2-p-C6H4-isoC(3)H(7)NCTPP); 3], (2-azo-24p-(isopropyl)]-5,10,15,20-tetraphenyl-21-carbaporphyrinato-N,N',N")platinum(II) [Pt(2-NCH2-p-C6H4-isoC(3)H(7)NCTPP); 4], iodo(2-azo2-p-(isopropyl)benzyl]-5,10,15,20-tetraphenyl-21-hydrogen-21-carbaporphyrinato-N,N',N")merculy(II) toluene solvate [Hg(2-NCH2-p-C6H4-isoC(3)H(7)-21-H-NCTPP)I center dot C6H5CH3; 5-C6H3CH3], (2-azo-2-[p-methylbenzyl]-5,10,15,20-tetraphenyl-21-carbaporphyrinato-N,N',N")nickel(II) [Ni(2-NCH2-p-C6H4-CH3NCTPP); 6] and iodo(2-azo-2-[p-methylbenzyl]-5,10,15,20-tetraphenyl-21-hydrogen-21-carbaporphyrinato-N,N',N")mercury(II) [Hg(2-NCH2-p-C6H4-CH3-21-H-NCTPP)I; 7] were determined. The coordination sphere around the Pd2+ (or Pt2+, Ni2+) ion in 3 (or 4, 6) is distorted square planar (DSP) whereas for Hg2+ in 5 (or 7), it is a distorted tetrahedral complex with the T -based pyramid of the C-2v symmetry. The coupling of H(17) in 5 (7) to Hg-199 with J[Hg-199-H(17)] = 34.8 Hz (5) and J [Hg-199-H(17)] = 34.2 Hz (7), supported the assignment of agostic eta(2)-C-H(17)center dot center dot center dot Hg interactions in these two mercury complexes. (C) 2017 Elsevier Ltd. All rights reserved.