Dalton Transactions

doi: 10.1039/C3DT90133Epmid: N/A

doi: 10.1039/c3dt90133epmid: N/A

doi: 10.1039/C3DT90134Cpmid: N/A

doi: 10.1039/c3dt90134cpmid: N/A

doi: 10.1039/c3dt90136jpmid: N/A

doi: 10.1039/C3DT90136Jpmid: N/A

Yan, Ning; Yuan, Yuan; Dyson, Paul J.

doi: 10.1039/c3dt51180dpmid: 23770799

Nanoparticle (NP) catalysis is traditionally viewed as a sub-section of heterogeneous catalysis. However, certain properties of NP catalysts, especially NPs dispersed in solvents, indicate that there could be benefits from viewing them from the perspective of homogeneous catalysis. By applying the fundamental approaches and concepts routinely used in homogeneous catalysis to NP catalysts it should be possible to rationally design new nanocatalysts with superior properties to those currently in use.

Poteet, Steven A.; MacDonnell, Frederick M.

doi: 10.1039/c3dt51664dpmid: 23925310

Addition of water to the quinone functions in [Ru(phen)2(pdn)]2+ (1) and [Ru(pdn)3]2+ (2) (where phen = 1,10-phenanthroline and pdn = 1,10-phenanthroline-5,6-dione) turns on fluorescence at 605 nm, as formation of the geminal diol eliminates the predominant quinone-based non-radiative decay pathway and gives rise to a long-lived 3MLCT state similar in nature to that seen in [Ru(phen)3]2+. Using NMR, the equilibrium constant for the hydration reaction of 1 in acetonitrile was determined to be 0.0253. From this data and experimental fitting of the luminescent titration data, the equilibrium constant for 2 of 1.62 × 10−5 and emission yields for hydrated 1 and 2 were determined. Interestingly, all three quinone functions must be hydrated in 2 for luminescence, which is why the equilibrium constants vary so much. The ‘turn on’ luminescence allows for a very sensitive detection of water in aprotic solvents such as acetonitrile.

Murphy, Michael J.; D'Alessandro, Deanna M.; Kepert, Cameron J.

doi: 10.1039/c3dt51721gpmid: 23925419

A new coordination framework material, [Zn{MnN(CN)4(H2O)}]·2H2O·MeOH, has been characterised crystallographically and the effect of a terminal nitride on the N2, H2 and CO2 sorption capacities of the material assessed through porosimetery measurements and DRIFTS.

Sahana, Animesh; Banerjee, Arnab; Lohar, Sisir; Banik, Avishek; Mukhopadhyay, Subhra Kanti; Safin, Damir A.; Babashkina, Maria G.; Bolte, Michael; Garcia, Yann; Das, Debasis

doi: 10.1039/c3dt51752gpmid: 23925436