Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Helmut Fric"'
Publikováno v:
Food Control. 50:548-553
Food packaging materials fundamentally contribute to food quality and safety, as they protect the packaged food against external influences. In this context, the determination of the hygiene status of the packaging material is of great importance. Ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd3108516b12244ce8ec626be060834b
https://doi.org/10.1016/j.foodcont.2014.10.002
https://doi.org/10.1016/j.foodcont.2014.10.002
Autor:
Maria Bendova, Stefan O. Baumann, Claudia Visinescu, Michael Puchberger, Helmut Fric, Ulrich S. Schubert
Publikováno v:
European Journal of Inorganic Chemistry. 2009:3333-3340
Crystalline oximate derivatives of titanium alkoxides [Ti(OR)2(ON=CR′R″)2]2 were obtained when Ti(OR)4 (R = iPr, Et) was treated with various oximes (cyclopentanone oxime, cyclohexanone oxime, acetoxime, ethyl methyl ketoxime or 2,4-pentandione d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7b955c85a0b161a7b98302b5377dc92
https://doi.org/10.1002/ejic.200900381
https://doi.org/10.1002/ejic.200900381
Publikováno v:
European Journal of Inorganic Chemistry. 2008:1452-1461
The structures of Ti2(OiPr)6(OCHMeCH2NH2)2 and Ti 2 (OiPr) 6 -(OCH 2 CHMeNH 2 ) 2 , obtained by reaction of Ti(OiPr) 4 with the corresponding amino alcohols, were investigated to elucidate the structural influence of the organic substituents at the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05ab7b532224517a22d092038be54152
https://doi.org/10.1002/ejic.200701163
https://doi.org/10.1002/ejic.200701163
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 138:529-539
Metal-alkoxides containing polymerizable groups are regularly used as precursors for inorganic–organic hybrid materials applying the combination of the sol–gel process and organic polymerizations. Here we report the synthesis of acetoacetoxy deri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2058b14301c75ad9c9435c7aef548324
https://doi.org/10.1007/s00706-007-0632-3
https://doi.org/10.1007/s00706-007-0632-3
Autor:
Helmut Fric, Ulrich S. Schubert
Publikováno v:
Zeitschrift für Naturforschung B. 62:487-490
The imide derivatives Li4Ti4O2(NR)2(OiPr)12 (R = CH2C6H5, C6H11, C4H9) were obtained either by reaction of the amine adduct Ti2(OiPr)8(H2NR)2 with lithium diiso- propylamide or butyllithium, or when the primary amine was first reacted with the base a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a13e00c0728e85cbbf35cb1411105d8b
https://doi.org/10.1515/znb-2007-0325
https://doi.org/10.1515/znb-2007-0325
Publikováno v:
European Journal of Inorganic Chemistry, 2007(3), 376-383. Wiley-VCH Verlag
The reaction of bis(2-aminoethyl)amine with M(OiPr) 4 (M = Ti, Zr) affords the chain-like coordination polymers [M 2 (OiPr) B -(H 2 NCH 2 CH 2 NHCH 2 CH 2 NH 2 )] ∞ , where only the NH 2 groups of the amine are coordinated to the M 2 (OiPr) 8 units
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c584c642c13ea9baebc573298313267c
https://doi.org/10.1002/ejic.200600743
https://doi.org/10.1002/ejic.200600743
Autor:
Michael Puchberger, Silvia Gross, Helmut Fric, Ulrich S. Schubert, Myhedin Jupa, Franz René Kogler, Guido Kickelbick
Publikováno v:
European Journal of Inorganic Chemistry. 2006:3283-3293
Upon reaction of zirconium alkoxides, Zr(OR)4, with carboxylic acids, the clusters Zr6O4(OH)4(OOCR)12 (Zr6) or [Zr6O4(OH)4(OOCR)12]2 (Zr12) were obtained, depending on the employed carboxylic acid. The structures of Zr12 clusters with acetate, propio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22505d04376c8dfb22fbf2d63ab21104
https://doi.org/10.1002/ejic.200600348
https://doi.org/10.1002/ejic.200600348
Publikováno v:
Journal of Sol-Gel Science and Technology. 40:155-162
The structural chemistry of crystalline adducts M2(OR)8(amine)2 (M = Ti: OR = OiPr, amine = NH2CH2Ph, NH2Bu; M = Ti: OR = OEt, amine = piperidine; M = Zr: OR = OiPr, amine = NH2CH2Ph, NH2C6H11) is discussed. The adducts were obtained by reaction of T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a608f1d45ef85af96577fb35e1ee7e5b
https://doi.org/10.1007/s10971-006-8144-x
https://doi.org/10.1007/s10971-006-8144-x
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 137:1-6
The yttrium carboxylates Y(methacrylate)3 and Y(acetate)3·0.5 H2O were prepared by reaction of Y(OCH2CH2OMe)3 with methacrylic or acetic acid and characterized by X-ray structure analyses. Both carboxylates have chain structures with both bridging a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db57079c3592a684d11bfd6f47a0d998
https://doi.org/10.1007/s00706-005-0400-1
https://doi.org/10.1007/s00706-005-0400-1
Autor:
Helmut Fric, Ulrike Bauer, Michael Puchberger, Ulrich S. Schubert, Viktoria Torma, Wolfgang Rupp
Publikováno v:
ResearcherID
Bidentate ligands are potentially useful to modify metal alkoxides precursors for sol-gel processing. However, anionic bidentate ligands are needed to get a strong coordination, while diamines as neutral bidentate ligand form coordination polymers [T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bce37de0a9bb22af7659b31d7eccf912
https://doi.org/10.1002/chin.200552221
https://doi.org/10.1002/chin.200552221