193,478 research outputs found
From self assembled monolayers to clickable gold nanoparticles
No full textThe aim of the present PhD thesis was the investigation of the behavior of gold nanoparticle stabilizing oligo thioether ligands on gold surfaces and further on to develop a protocol for the directed assembly of mono functionalized gold nanoparticle into defined oligomer structures.
Outline
The present cumulative PhD thesis consists of the following parts:
In the Introduction the research field of gold nanoparticles is presented with to point out their unique electronic and physical properties. The second focus will be on the controlled interlinking and functionalization of gold nanoparticles using click chemistry and their potential applications, which will be submitted as a review article.
Within Concept and Strategy the goals of the research project are introduced and the concepts and outputs of the resulting publications are presented.
The Publications are accumulated with their respective Supporting Information, in the order in which they were prepared:
“Loops versus Stems: Benzylic Sulfide Oligomers Forming Carpet Type Monolayers“ F. Sander, T. Peterle, N. Ballav, F. Wrochem, M. Zharnikov, M. Mayor J. Phys. Chem. C, 2010, 114, 4118 – 4125.
“Add a Third Hook: S-Acetyl Protected Oligophenylene Pyridine Dithiols as Advanced Precursors for Self-Assembled Monolayers“ F. Sander, J. P. Hermes, M. Mayor, H. Hamoudi, M. Zharnikov PCCP, 2013, 15, 2836 – 2846.
“Dumbbells, Trikes and Quads - Click Gold Nanopartricles together“ F. Sander, U. Fluch, J. P. Hermes and M. Mayor Small 2014, 10, 349 – 359.
“Click Chemistry with Gold Nanoparticles – A Tool for Functionalization, Interlinking and Labeling” Fabian Sander and Marcel Mayor, manuscript prepared for submission.
Finally, within Conclusion and Outlook the main results are briefly summarized and further potential research is proposed
Carboxylation of carbenes in low-temperature matrixes
No full textPT: J; CR: ADAM W, 1971, J AM CHEM SOC, V93, P557 ADAM W, 1973, J ORG CHEM, V38, P2269 BAMFORD WR, 1952, J CHEM SOC, P4735 BONNEAU R, 1989, J CHEM SOC CHEM COMM, P510 CHAMPAM OL, 1972, J AM CHEM SOC, V94, P1365 COE PL, 1982, J CHEM SOC CHEM COMM, P362 EISENTHAL KB, 1985, TETRAHEDRON, V41, P1543 GANZER GA, 1986, J AM CHEM SOC, V108, P1517 GOULD IR, 1985, TETRAHEDRON, V41, P1587 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 GRILLER D, 1985, TETRAHEDRON, V41, P1525 LIU MTH, 1980, J CHEM SOC CHEM COMM, P1482 LIU MTH, 1987, TETRAHEDRON LETT, V28, P1011 MALTSEV AK, 1985, IAN SSSR KH, P2159 MCMAHON RJ, 1987, J AM CHEM SOC, V109, P2456 MILLIGAN DE, 1962, J CHEM PHYS, V35, P2911 MOSS RA, 1989, ACCOUNTS CHEM RES, V22, P15 PLATZ MS, 1990, KINETICS SPECTROSCOP, P239 PUZA M, 1971, SYNTHESIS-STUTTGART, P481 SANDER W, 1988, ANGEW CHEM INT EDIT, V27, P572 SANDER W, 1988, ANGEW CHEM, V100, P577 SANDER W, 1988, J ORG CHEM, V53, P2091 SANDER W, 1990, ANGEW CHEM INT EDIT, V29, P344 SANDER W, 1990, ANGEW CHEM, V102, P362 SANDER WW, 1987, SPECTROCHIM ACTA A, V43, P637 SANDER WW, 1989, J ORG CHEM, V54, P333 SANDER WW, 1989, J ORG CHEM, V54, P4265 SIEBRAND W, 1986, ACCOUNTS CHEM RES, V19, P238 WHELAND R, 1970, J AM CHEM SOC, V92, P6057; NR: 29; TC: 22; J9: J ORG CHEM; PG: 3; GA: HB875Source type: Electronic(1
A tale of two cities: urban networks in Paris and London - An interview with Anthony R. Sutcliffe
No full textSutcliffe Anthony, Sander Agnès. A tale of two cities: urban networks in Paris and London - An interview with Anthony R. Sutcliffe. In: Flux, n°19, 1995. pp. 56-58
1, 2-H shift in benzylchlorocarbene: isotope effect and influence of the solvent
No full textLaser flash photolysis of 3-chloro-3-benzyldiazirine and 3-chloro-3-(phenyldideuteriomethyl)diazirine in isooctane over the 60 to -80-degrees-C temperature range gives rise to curved Arrhenius plots for both 1,2-H and 1,2-D migration in benzylchlorcarbene. The k(H)/k(D) values increase smoothly from 0.87 to 2.62 when the temperature increases from -60 to +30-degrees-C. The k(H)/k(D) value is approximately 4 for most of the temperatures studied if a solvent correction is applied. Quantum mechanical tunnelling or the influence of the solvent may be a possible explanation for these observations.PT: J; CR: BONNEAU R, 1989, J AM CHEM SOC, V111, P5973 BONNEAU R, 1992, J PHOTOCH PHOTOBIO A, V68, P97 DIX EJ, 1993, J AM CHEM SOC, V115, P10424 EVANSECK JD, 1990, J PHYS CHEM-US, V94, P5518 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 JACKSON JE, 1994, ADV CARBENE CHEM JONES M, 1980, REACTIVE INTERMEDIAT, V2 KIRMSE W, 1971, CARBENE CHEM LIU MTH, 1984, TETRAHEDRON, V40, P887 LIU MTH, 1990, J AM CHEM SOC, V112, P3915 LIU MTH, 1992, J PHOTOCH PHOTOBIO A, V63, P115 LIU MTH, 1992, J PHYS ORG CHEM, V15, P285 LIU MTH, 1994, RES CHEM INTERMEDIAT, V20, P195 MODARELLI DA, 1992, J AM CHEM SOC, V114, P7034 MOSS RA, 1992, TETRAHEDRON LETT, V33, P4287 MOSS RA, 1994, ADV CARBENE CHEM MUROV SL, 1973, HDB PHOTOCHEMISTRY NICKON A, 1993, ACCOUNTS CHEM RES, V26, P84 SALIS GA, 1968, J PHYS CHEM-US, V72, P752 SANDER W, 1994, UNPUB SCHAEFER HF, 1979, ACCOUNTS CHEM RES, V12, P288 SCHOLLER WW, 1989, HOUBEN WEYL METHODEN, P41 SHIMANOUCHI T, 1972, TABLES MOL VIBRATION, V1 SUGIYAMA MH, 1992, J AM CHEM SOC, V114, P966 WIERLACHER S, 1993, J AM CHEM SOC, V115, P8943; NR: 25; TC: 20; J9: J PHOTOCHEM PHOTOBIOL A-CHEM; PG: 5; GA: PV021Source type: Electronic(1
Restrepia trichoglossa Sander
No full textRestrepia trichoglossa F.Lehm. ex Sander, Sander’s Orch. Guide: 215. 1901. Voucher: A. Molina R. 8135 (EAP).Published as part of Vega, Hermes, Cetzal-Ix, William, Mó, Edgar, Romero-Soler, Katya J. & Basu, Saikat K., 2022, An Updated Checklist of the Orchidaceae of Honduras, pp. 1-80 in Phytotaxa 562 (1) on page 68, DOI: 10.11646/phytotaxa.562.1.1, http://zenodo.org/record/707369
Detection of carbonyl oxide from singlet para-nitrophenylchlorocarbene and oxygen
No full textPT: J; CR: BARTLETT PD, 1962, J AM CHEM SOC, V84, P3408 BELL GA, 1985, SPECTROCHIM ACTA A, V41, P1221 BONNEAU R, 1989, J CHEM SOC CHEM COMM, P510 CARMICHAEL I, 1986, J PHYS CHEM REF DATA, V15, P1 CASAL HL, 1984, J AM CHEM SOC, V106, P7623 DUNKIN IR, 1986, J CHEM SOC CHEM COMM, P154 FESSENDEN RW, 1985, CHEM PHYS LETT, V117, P103 GANZER GA, 1986, J AM CHEM SOC, V108, P1517 GOULD IR, 1985, TETRAHEDRON, V41, P1987 HARDING LB, 1978, J AM CHEM SOC, V100, P7180 HULL LA, 1978, J ORG CHEM, V43, P2780 KIRMSE W, 1971, CARBENE CHEM KIRMSE W, 1985, CHEM BER, V19, P614 LIU MTH, 1987, CHEM DIAZIRINES, CH5 MOSS RA, 1986, J AM CHEM SOC, V108, P7028 PADWA A, 1969, J ORG CHEM, V34, P2728 SANDER W, 1985, ANGEW CHEM INT EDIT, V24, P988 SANDER W, 1985, ANGEW CHEM, V97, P964 SANDER W, 1986, ANGEW CHEM INT EDIT, V25, P255 SANDER W, 1988, J ORG CHEM, V53, P121 SANDER W, 1988, J ORG CHEM, V53, P2091 SANDER W, 1989, J ORG CHEM, V54, P335 SANDER WW, 1987, SPECTROCHIM ACTA A, V43, P637 SOUNDARARAJAN N, 1988, J AM CHEM SOC, V110, P7143 SUGAWARA T, 1983, CHEM LETT, P1261 TROZZOLO AM, 1962, J AM CHEM SOC, V84, P4990 TROZZOLO AM, 1968, ACCOUNTS CHEM RES, V1, P329 WADT WR, 1975, J AM CHEM SOC, V97, P244 WERSTIUK NH, 1984, CAN J CHEM, V62, P2391; NR: 29; TC: 17; J9: J CHEM SOC CHEM COMMUN; PG: 2; GA: EG981Source type: Electronic(1
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Falk A., Hammel R., eds.-Archäologische und schriftliche Quellen zur spàtmittelalterlich -neuzeitlichen Geschichte der Hansestadt Lübeck (Materialien und Methoden einer archaologisch-historischen Auswertung), 1987
No full textVan der Leeuw Sander Ernst. Falk A., Hammel R., eds.-Archäologische und schriftliche Quellen zur spàtmittelalterlich -neuzeitlichen Geschichte der Hansestadt Lübeck (Materialien und Methoden einer archaologisch-historischen Auswertung), 1987. In: Les Nouvelles de l'archéologie, n°29, automne 1987. p. 61
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