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- ItemA neutral low-coordinate heterocyclic bismuth-tin species(Cambridge : Soc., 2015) Hering-Junghans, C.; Schulz, A.; Villinger, A.The reaction of distannadiazane bearing bulky RAr*-groups (RAr* = C6H2{C(H)Ph2}2R-2,6,4; R = iPr, tBu) with ECl3 (E = Sb, Bi) was studied resulting in the isolation of previously unknown N,N-bis(dichloropnictino)amines (3) and a novel heterocyclic carbenoid bismuth species (4) bearing a Bi(III) and a Sn(IV) center. The structure and bonding was investigated by means of X-ray structure elucidations and DFT calculations.
- ItemRemoval of hazardous pharmaceutical from water by photocatalytic treatment(Warsaw : Central European Science Journals, 2010) Choina, J.; Duwensee, H.; Flechsig, G.-U.; Kosslick, H.; Morawski, A.W.; Tuan, V.A.; Schulz, A.The photocatalytic abatement of hazardous pharmaceuticals has been investigated at very low concentration in the ppb range as found in wastewater and in environmental pollutants. Photocatalytic degradation of tetracycline as a model compound with titania catalysts has been studied using solarium UV-A and black light with differentially applied electric power, tetracycline and catalyst concentration. Abatement of up to 90% has been achieved after 1 hour. Adsorption of tetracycline and photochemical degradation contribute significantly to the abatement of tetracycline resulting in an immediate reduction during the initial period of treatment. Contribution of adsorption is high at very low concentration (500 ppb). Photocatalytic treatment with titania is even highly efficient in the abatement of very small concentrations of tetracycline in drinking water. © 2010 Versita Warsaw and Springer-Verlag Wien.
- ItemAn efficient route to 1,3,5-triazido-2,4,6-tricyanobenzene(Berlin : DeGruyter, 2012) Becker, M.; Voss, K.; Villinger, A.; Schulz, A.An efficient synthetic route starting from 1,3,5-trimethylbenzene is described for binary 1,3,5- triazido-2,4,6-tricyanobenzene. Besides 1,3,5-triazido-2,4,6-tricyanobenzene, all intermediates have been isolated and fully characterized.