Zobrazeno 1 - 10
of 102
pro vyhledávání: '"E.E. Havinga"'
Autor:
Jérôme Cornil, René A. J. Janssen, E.E. Havinga, John A. E. H. van Haare, Joost L. J. van Dongen, Jean-Luc Brédas
Publikováno v:
Chemistry – A European Journal. 4:1509-1522
Can two isolated radical cations (polarons) exist simultaneously on a π-conjugated chain or do they coalesce into a single, doubly charged spinless (bipolaron) deformation? This long-standing question, fundamental to charge transport in conducting p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e3beeed00864376ef7f809a78c82edd
https://doi.org/10.1002/(sici)1521-3765(19980807)4:8<1509::aid-chem1509>3.0.co
https://doi.org/10.1002/(sici)1521-3765(19980807)4:8<1509::aid-chem1509>3.0.co
Autor:
Eric H. J. Hendrickx, Lambertus Groenendaal, E.E. Havinga, M.J. Bruining, E. W. Meijer, Jef A. J. M. Vekemans, Andre Persoons
Publikováno v:
Chemistry of Materials, 10(1), 226-234. American Chemical Society
The Pd-catalyzed cross-coupling reaction involving organostannanes (Stille reaction) is applied to prep. a series of N-t-BOC-protected D-p-A oligopyrroles. After purifn., oligomers with one to four pyrrole units inserted between a 4-nitrophenyl and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01da25f1aa860de700489baffcad204b
https://doi.org/10.1021/cm970344x
https://doi.org/10.1021/cm970344x
Sergeants-and-soldiers principle in chiral columnar stacks of disc-shaped molecules with C3 symmetry
Publikováno v:
Angewandte Chemie-International Edition, 36(23), 2648-2651. Wiley
Extremely effective cooperative effects operate during the formation of chiral stacks of C3-symmetrical molecules in alkane solvents (a molecule is depicted on the right). The sergeants-and-soldiers principles as well as chiral solvation lead to a pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daf514017176bf27ab9bc76c6f178d21
https://doi.org/10.1002/anie.199726481
https://doi.org/10.1002/anie.199726481
Publikováno v:
Angewandte Chemie. 108:696-699
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d132e877a2ed418ccda95dfefe90b838
https://doi.org/10.1002/ange.19961080618
https://doi.org/10.1002/ange.19961080618
Autor:
J.A.J.M. Vekemans, L. Groenendaal, J. L. J. van Dongen, H. W. I. Peerlings, E.E. Havinga, E. W. Meijer
Publikováno v:
Macromolecules, 28(1), 116-123. American Chemical Society
The Ullmann coupling reaction has been used to polymerize N-t-BOC-2,5-dibromopyrrole into well-defined oligo(pyrrole-2,5-diyl)s. After optimization of the reaction conditions, i.e. using 1 wt equiv of Cu-bronze in DMF at 100 "C for 1 h, oligomers up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf9de50921320f7e373467dcda0e02c1
https://doi.org/10.1021/ma00105a015
https://doi.org/10.1021/ma00105a015
Autor:
Rjm Roeland Nolte, Thierry Verbiest, Aj Schouten, Ew Bert Meijer, E.E. Havinga, Ap Persoons, Mn Marcel Teerenstra, Martti Kauranen
Publikováno v:
Scopus-Elsevier
Advanced Materials, 7(7), 641-644. Wiley-VCH Verlag
Advanced materials, 7(7), 641-644. WILEY-V C H VERLAG GMBH
Advanced Materials, 7(7), 641-644. Wiley-VCH Verlag
Advanced materials, 7(7), 641-644. WILEY-V C H VERLAG GMBH
Communication: The influence of chirality on the nonlinear optical properties of poly(isocyanide)s is examined. It is found that the chiral and nonlinear properties can occur on different levels of the molecular structure and can therefore be separat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c9076827c04943e60729d95c622d7ee
https://research.tue.nl/en/publications/c07b6822-bddb-439c-863e-09b6b3962b96
https://research.tue.nl/en/publications/c07b6822-bddb-439c-863e-09b6b3962b96
Publikováno v:
Molecular Crystals and Liquid Crystals, 256, 439-448. Taylor and Francis Ltd.
The synthesis and (chir)optical properties of a highly regioregular optically active 3-substituted polythiophene are reported. Using the McCullough method a regioselectivity of more than 98% is found for the head-to-tail coupling in 3-[2-((S)-2-methy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa8d0b4e54444c370ad759fc2b154cb5
https://doi.org/10.1080/10587259408039274
https://doi.org/10.1080/10587259408039274
Autor:
E.E. Havinga, E. W. Meijer
Publikováno v:
Synthetic Metals, 57(1), 4010-4017. Elsevier
We have demonstrated that second harmonic generation (SHG) can be obtained from centrosymmetric crystals of a racemic mixture of chiral molecules. Circular polarization of the fundamental wave is a prerequisite to obtain selectivity in the interactio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cfe915398ccfda0e6e052bf522ee51f
https://doi.org/10.1016/0379-6779(93)90550-g
https://doi.org/10.1016/0379-6779(93)90550-g
Publikováno v:
Angewandte Chemie. 109:2763-2765
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca634e59c230fbd4434f3738c5375f86
https://doi.org/10.1002/ange.19971092328
https://doi.org/10.1002/ange.19971092328
Publikováno v:
Angewandte Chemie-International Edition, 35(6), 638-640. Wiley
In two consecutive one-electron oxidations, oligopyrroles substituted with phenyl capping groups (PhPynPh, n = 2–4) can be oxidized reversibly to give stable cation radicals and dications. Spectroelectrochemical studies give direct evidence that di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::701dee8a4485bcd3c1c9a599c3382238
https://doi.org/10.1002/anie.199606381
https://doi.org/10.1002/anie.199606381