期刊
POLYHEDRON
卷 207, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2021.115367
关键词
Aluminium complexes; Gallium complexes; Indium complexes; Diimine complexes
资金
- EPSRC via the ADEPT programme grant [EP/N035437/1, EP/R513325/1]
- EPSRC [EP/N035437/1] Funding Source: UKRI
The study found that metal complexes formed in the experiment exhibited different coordination states and varied ligand substitution patterns.
M(OTf)(3)(terpy)], whilst with 2,2' -bipyridyl (bipy) and 1,10-phenanthroline (phen) the products isolated were cis-[M(OTf)(2)(bipy)(2)]OTf (M = Al, Ga), cis-[In(OTf)(H2O)(bipy)(2)][OTf](2), cis-[Al(OTf)(2)(phen)(2)][OTf] and [In (H2O)(2)(phen)(2)][OTf](3). The X-ray structures of mer-[In(OTf)3(terpy)], cis-[Ga(OTf)2(bipy)(2)][OTf] and cis-[In (OTf)(H2O)(bipy)(2)][OTf](2), along with those of the minor by-products, cis-[Ga(H2O)(2)(phen)(2)][OTf](3) and the hydroxide-bridged dimer [{In(terpy)(OTf)}(2)(mu-OH)(2)][OTf](2) were also obtained, all of which show sixcoordination at the metal ion. While the anhydrous complexes show.1-coordination of the triflate to the metal ion, those species with coordinated water (or hydroxide) ligands show significant H-bonding interactions between the water H atoms and the O-atoms from triflate anions. The complexes were characterised by IR, H-1, C-13{H-1}, F-19{H-1} and 27Al NMR spectroscopy, together with microanalysis. The F-19{H-1} NMR spectra suggest that in MeCN solution the coordinated triflates are displaced by the solvent, but the original complexes appear to reform on removal of the MeCN in vacuo.
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