The coordination chemistry of tin porphyrin complexes

Arnold, Dennis P.; Blok, J.

doi:10.1016/j.ccr.2004.01.004

Cited by 178 publications

(163 citation statements)

References 121 publications

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“…Substitution of the two hydroxyl groups for NCN-pincer Pt-benzoato monoanions leads to a very small hypsochromic shift in the UV/Vis spectra from 428 to 426 nm (Figure 2), which is in line with the reported values for the corresponding bis(benzoato) complex [1]. The effect of the electron-releasing properties of the iodoplatino(II) pincers on the electronic properties of the tin(IV) porphyrin entity apparently is small, pointing to a small interaction between the tin(IV) porphyrin and NCN-pincer platinum components in 3.…”

Section: Synthesis and Characterizationsupporting

confidence: 86%

“…While most research focuses on complexation of nitrogen and phosphorus ligands to the axial positions of diverse metalloporphyrins, the number of investigations into the supramolecular applications of tin(IV) porphyrins are gradually increasing in number [1]. There are several reasons, which make tin(IV) porphyrins such interesting building blocks, the most important being the high oxophilicity of the hard tin(IV) atom.…”

Section: Introductionmentioning

confidence: 99%

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A Tin(IV) Porphyrin with Two Axial Organometallic NCN‐Pincer Platinum Units

Suijkerbuijk

Tooke

Spek

et al. 2007

Zeitschrift anorg allge chemie

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Abstract.A tin(IV) porphyrin was combined with two axial NCNpincer platinum(II) fragments by utilizing the oxophilicity of the apical positions on the tin atom and the acidic nature of the NCNpincer platinum derived benzoic acid. The solid-state structure determined by X-ray crystallography revealed some close contacts between the pincer complexes and the meso-p-tolyl subsitutents of the porphyrin. It was shown by 1 H NMR spectroscopy that these

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Section: Synthesis and Characterizationsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

A Tin(IV) Porphyrin with Two Axial Organometallic NCN‐Pincer Platinum Units

Suijkerbuijk

Tooke

Spek

et al. 2007

Zeitschrift anorg allge chemie

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“…Whitten et al reported that the tin (IV) porphyrin complexes are purple, while tin (II) complexes are green [18]. Tin (II) porphyrin was instable and had a low reduction property compared with the tin (IV) porphyrin [19]. The extremely low hydrogen evolution in the second run is probably caused by the structure change of tin (IV) porphyrin to tin (II) porphyrin after the first run.…”

Section: Photoinduced Hydrogen Evolution System Using Sntpp and Sntppmentioning

confidence: 99%

A Photoinduced Hydrogen Evolution System Using Polymer-Supported Tin Porphyrin

et al. 2007

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: We examined the photoinduced evolution of hydrogen using a tin meso-tetraphenylporphyrin tetrasulfonate (SnTPPS) and tin meso-tetraphenylporphyrin (SnTPP) supported in various polymer films and fabrics. The hydrophilic polymers are more effective than the hydrophobic polymer as a supporter, because water penetration is easier and also the mobilities of the porphyrin molecules as well as protons and electrons in the film. A larger amount of hydrogen evolved using the SnTPPS-adsorbed keratin film (derivation of wool) than other film systems. The results indicated that keratin is a good electron transfer material. The evolved hydrogen was 25 -160 times that in other SnTPP-supported polymer films. Moreover, the fabric systems were more effective than the polymer film systems, because of the much higher specific surface area. In the SnTPP/PET fabric system, the turnover number exceeded 400 under the highpressure mercury lamp, which was about 1600 times larger than that under the tungsten lamp.

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“…12,13 The chemical state of Fe ions in Fe-porphyrin complexes with meso-substitutes has been examined using IR, XRD, NMR, EPR, Mössbauer, electron spectroscopy, MD, and DFT calculations. 14,19 Notwithstanding, it remains unclear how the influence of electron-withdrawal is transmitted to the electron state of the center Fe ion in each Fe-porphyrin complex. Elucidation of the electron structure throughout a Fe-porphyrin complex with meso-substitutes is an important task toward the development of stable and highly active Fe-porphyrin complexes as oxidation catalysts.…”

Section: Introductionmentioning

confidence: 99%