An active catalyst system for proton reduction composed of a bipyridyl platinum complex and a polymer membrane

Abe, Toshiyuki; Takahashi, Kumiko; Shiraishi, Yukihide; Toshima, Naoki; Kaneko, Masao

doi:10.1002/(sici)1521-3935(20000101)201:1<102::aid-macp102>3.0.co;2-f

Cited by 10 publications

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“…While the majority of studies performed on square-planar platinum containing complexes have focused on the spectroscopic properties in solution or in the crystalline form, less attention has been focused on incorporating them into polymer matrices. [67][68][69][70] However, it is well-known that the optoelectronic properties of metal complexes can be impacted by their microenvironment, as in the case of vapochromic materials composed of luminescent platinum(II) complexes intercalated into zirconium phosphate layered materials which are non-emissive in solution and highly emissive in the ZrP layers. 71 The majority of work on polymers embedded with platinum(II) complexes has focused on using Nafion to develop efficient singlet oxygen photosensitizers; however less attention has been given to the spectroscopic properties of these materials.…”

Section: Introductionmentioning

confidence: 99%

Vapochromic and mechanochromic films from square-planar platinum complexes in polymethacrylates

et al. 2012

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Square-planar platinum(II) complexes of the 4-dodecyloxy-2,6-bis(N-methylbenzimidazol-2 0 -yl) pyridine ligand have been blended into a series of methacrylate polymers. Each of the polymer films displayed vapochromic (yellow to red) and vapoluminescent behaviour as a result of the vapour induced change in the Pt-Pt interactions. The solid-state absorption and emission properties of the films were characterized, and the influence of the polymer matrix on the vapochromic response was investigated. Notably, the rate of recovery of the yellow colour after vapour-exposure was found to be dependent on the T g of the matrices, and the response can be effectively erased and the materials restored to the original yellow colour within minutes by simply heating above their T g . The polymer-complex blends also displayed interesting mechanochromic and mechanoluminescent properties upon deformation either by compression, scratching, or stretching. The accumulated data are consistent with a solvato-or mechanoinduced structural rearrangement that results in a shortening of the Pt-Pt distances.

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