Zobrazeno 1 - 10
of 299
pro vyhledávání: '"S. Sternhell"'
The derivation of structural information from spectroscopic data is now an integral part of organic chemistry courses at all Universities. A critical part of any such course is a suitable set of problems to develop the student's understanding of how
Publikováno v:
ChemInform. 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58e1690958e0aa33fb054bce1e17dd9e
https://doi.org/10.1002/chin.199607125
https://doi.org/10.1002/chin.199607125
Publikováno v:
The Journal of Physical Chemistry. 96:5753-5759
4 J Me-C-C-H = 4 J OB , the spin-spin coupling constant over four formal bonds between methyl protons and a proton bonded to an sp carbon, previously established 9-17 was a probe for bond order, was determined for 6-methyl-1,4-dihydro-1,4-methanonaph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71a86f121142f1bc3ec9899c7bcc2781
https://doi.org/10.1021/j100193a019
https://doi.org/10.1021/j100193a019
Publikováno v:
Acta Crystallographica Section B Structural Science. 46:557-562
(I) C 16 H 14 O 2 cristallise dans P1 avec a=14,844, b=14,960, c=15,464 A, α=59,34, β=62,84, γ=62,00°, Z=8; affinement jusqu'a R=0,043. (II) C 12 H 12 O 2 cristallise dans C21C avec a=12,297, b=18,849, c=11,816 A, β=119,06°, Z=8; affinement jus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eda4e9e6be97abaab16b9f9051512181
https://doi.org/10.1107/s0108768190001690
https://doi.org/10.1107/s0108768190001690
Autor:
S. Sternhell
Publikováno v:
eMagRes
The sections in this article are 1 NMR Physics 2 NMR Instrumentation and Techniques 3 Interpretation of NMR Spectra 4 Biographical Sketch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9dc8e35483e69fe2f225dcb07818924
https://doi.org/10.1002/9780470034590.emrhp0176
https://doi.org/10.1002/9780470034590.emrhp0176
Organic Structures from Spectra, Fourth Edition consists of a carefully selected set of over 300 structural problems involving the use of all the major spectroscopic techniques. The problems are graded to develop and consolidate the student's underst
Publikováno v:
World Scientific Series in 20th Century Chemistry ISBN: 9789810213619
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::992852196b549fd1486e840702c2e2bc
https://doi.org/10.1142/9789812795984_0023
https://doi.org/10.1142/9789812795984_0023
Publikováno v:
Australian Journal of Chemistry. 48:1727
N.m.r. and equilibration studies gave the kinetic parameters for the inversion processes in seven helical molecules based on hexalindione (1). It appears that a simple relation exists in these systems between the free energy of inversion and non-bond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd320a30193ed8b948e05463783c1f20
https://doi.org/10.1071/ch9951727
https://doi.org/10.1071/ch9951727
Publikováno v:
Australian Journal of Chemistry. 47:723
Two lipophilic tetradentate ligands, 5,5′-di-t-butyl- and 5,5′-dihexyl-2,2′-bipyrimidine, were prepared via either Ullmann or nickel(0)-promoted reactions in low but useful yields. Approaches towards the synthesis of lipophilic ligands based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14c1c4e6142a45a4db2a945d49d0b2f6
https://doi.org/10.1071/ch9940723
https://doi.org/10.1071/ch9940723
Autor:
PM Hatton, S Sternhell
Publikováno v:
Australian Journal of Chemistry. 46:149
The previously established 1H n.m.r. method of probing bond order1 has been used to show that electron-donating (+R) substituents at C2 of pyridine cause significant ground-state polarization of the heteroaromatic system. This has led to a new and in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de55673615e280ad69582b2c8da3f063
https://doi.org/10.1071/ch9930149
https://doi.org/10.1071/ch9930149