Self‐Assembly of Coordination Polymers from Volatile PdII and PbII β‐Diketonate Derivatives through Metallophilic Interactions. Issue 33 (2nd October 2013)

• Record Type: Journal Article
• Authors: Krisyuk, Vladislav V.; Baidina, Iraida A.; Basova, Tamara V.; Bulusheva, Lyubov G.; Igumenov, Igor K.
• Is Part Of: European journal of inorganic chemistry. Issue 33(2013)
• Page Start: 5738
• Page End: 5745
• Publication Date: 2013-10-02
• Subjects: Coordination polymers -- Chain structures -- Lead -- Palladium -- Metal–metal interactions; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201300876
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: New dimetallic coordination polymers based on neutral metal β‐diketonate derivatives can be obtained by simple cocrystallization from organic solvents. X‐ray crystallography studies have been performed for the dimetallic complexes [ trans ‐Pd(ki)2 ]*[Pb(hfa)2 ] (1 ; ki = 2‐iminopentan‐4‐onate, hfa = 1, 1, 1, 5, 5, 5‐hexafluoropentane‐2, 4‐dionate), [ cis ‐Pd(ki)2 ]*[Pb(hfa)2 ] (2 ), and [ trans ‐Pd(tmha)2 ]*[Pb(hfa)2 ]2 (3 ; tmha = 2, 2, 6, 6‐tetramethyl‐3‐iminoheptan‐5‐onate). The crystals of1 and3 are composed of chains of coordination polymers containing alternating molecules of the metal complexes. The crystals of2 are composed of tetrametallic species. Directed noncovalent metal–metal interactions along with the bridging ligand atoms bind the coordination polymers of these heterometallic coordination compounds. Structural evidence is reported for the formation of Pd II ··· Pb II metallophilic interactions in a series of similar compounds. A comparison of the calculated and experimental IR spectra allowed determination of the absorption bands in the region 100–600 cm –1 that correspond to the cooperative vibrations of the metal atoms that result from such interactions. The steric and electronic factors of the chelate ligands can be used to design the architecture of these new coordination polymers. Abstract : Dimetallic coordination polymers based on neutral metal β‐diketonate derivatives can form as a result of attractive metal–metal interactions. Structural evidence of the formation of Pd II ··· Pb II metallophilic interactions in a series of similar compounds is reported. The steric and electronic factors of chelate ligands can be used to design the architecture of these new coordination polymers.