Diverse reactivity of (N, N, N) tridentate bis-2,2’-(N-benzylamino) azobenzene, ligands with Na2PdCl4 and K2PtCl4

Diverse reactivity of (N, N, N) tridentate bis-2,2’-(N-benzylamino) azobenzene, ligands with Na2PdCl4 and K2PtCl4

Registration ID: IJNRD_182711

Published ID: IJNRD2208175

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Paritosh Mandal

Pd(II) & Pt(II) azo-amido complexes, ortho-platinated complex, Crystal structures, Catalytic activity, Redox property.

The newly designed tridentate ligand, bis-2,2'-(N-benzylamino)azobenzene (2), has been prepared by the reaction between 2,2'-diaminoazobenzene (1) and benzyl chloride in the presence of K2CO3. The reaction of these ligands with Na2PdCl4 and K2PtCl4 separately in a 1:1 ratio in methanol afforded two structurally diverse Pd(II) and Pt(II) complexes (3 & 4). The reaction of the N-benzylated azo ligand (2) gives a new cyclopalladated Pd (II) amido azo complex (3). However, when this ligand reacts with platinum salt, it affords an unprecedented ortho-platinated azo-imine complex (4). All three complexes were characterized by 1H NMR, UV-vis, FT-IR spectroscopy, and elemental analysis. Furthermore, the solid-state structures of azo-amido Pd(II) (3) and ortho-platinated azo-imine complex (4) were determined using single crystal X-ray diffraction analysis, and it revealed that the bis-2,2'-(N-benzylamino)azobenzene ligand binds with the Pd(II) ion center in a monoanionic tridentate (N, N, N) fashion, offering a distorted square planar geometry where the fourth coordination site is satisfied by one chloride ligand. In contrast, ligand (2) binds to Pt(II) in a bi-anionic tetra-anionic tetra-dentate (C, N, N, N) fashion, resulting in distorted square planar geometry. Furthermore, the air/moisture stable Pd(II) complex (3), with N-benzyl substituted azobenzene ligand, acts as an efficient catalyst for the Suzuki and Heck reactions under mild conditions. The electrochemical behaviors of the new ortho-platinated complex (4) were also examined.

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"Diverse reactivity of (N, N, N) tridentate bis-2,2’-(N-benzylamino) azobenzene, ligands with Na2PdCl4 and K2PtCl4", IJNRD - INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT (www.IJNRD.org), ISSN:2456-4184, Vol.7, Issue 8, page no.1539-1544, August-2022, Available :https://ijnrd.org/papers/IJNRD2208175.pdf

Volume 7 Issue 8, August-2022

Pages : 1539-1544

Paper Reg. ID: IJNRD_182711

Published Paper Id: IJNRD2208175

Downloads: 000121165

Research Area: Chemistry

Country: Beldanga, West Bengal, India

Published Paper PDF: https://ijnrd.org/papers/IJNRD2208175.pdf

Published Paper URL: https://ijnrd.org/viewpaperforall?paper=IJNRD2208175

Journal Name: INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT(IJNRD)

ISSN: 2456-4184 | IMPACT FACTOR: 8.76 Calculated By Google Scholar | ESTD YEAR: 2016

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