850016-35-2Relevant academic research and scientific papers
Bitopic phenylene-linked bis(pyrazolyl)methane ligands: Preparation and supramolecular structures of hetero- And homobimetallic complexes incorporating organoplatinum(II) and tricarbonylrhenium(I) centers
Reger, Daniel L.,Watson, Russell P.,Smith, Mark D.,Pellechia, Perry J.
, p. 1544 - 1555 (2008/10/09)
The new fixed-geometry, phenylene-linked bis(pyrazolyl)methane ligands α,α,α′,α′-tetra-(1-pyrazolyl)-m-xylene (m-[CH(pz)2]2C6H4, Lm), α,α,α′,α′-tetra(1-pyrazolyl)-p-xylene (p-[CH(pz)2]2C6H4, Lp), and α,α,α′,α′-tetrakis(4-benzylpyrazol-1-yl) -p-xylene (p-[CH(4Bnpz)2]2C6H 4, 4BnLp) have been synthesized in order to prepare hetero- and homobimetallic complexes incorporating tricarbonylrhenium(I) and bis(p-tolyl)platinum(II) fragments. Coordination of one rhenium center to Lm was achieved to yield the monometallic rhenium complex {m-[CH(pz)2]2C6H4}Re(CO) 3Br, which then incorporated a second metal center to give the heterobimetallic complex {μ-m-[CH(pz)2]2C 6H4}[Re(CO)3Br][Pt(p-tolyl)2]. The homobimetallic rhenium complexes of each ligand, {μ-m-[CH(pz) 2]2C6H4}[Re(CO)3Br] 2, {μ-p-[CH(pz)2]2C6H 4}[Re(CO)3Br]2, and {μ-p-[CH( 4Bnpz)2]2C6H4}[Re(CO) 3Br]2, were also prepared. The crystalline structure of each complex shows extensive noncovalent interactions, including weak hydrogen bonds and π...π and CH...π interactions, that organize the molecules into complex supramolecular structures.
