NMR Chemical Shifts of CommonLaboratory Solvents as Trace ImpuritiesHugo E. Gottlieb,* Vadim Kotlyar, andAbraham Nudelman*Department of Chemistry, Bar-Ilan University,Ram at-Gan 52900, IsraelReceived June 27, 1997In the course of the routine use of NMR as an aid fororganic chemistry, a day-...
samples, and run at lower magnetic fields, than today’s practice. We therefore decided to collect 1 H and 13 C chemical shifts of what are, in our experience, the most popular “extra peaks” in a variety of commonly used NMR solvents, in the hope that this will be of assistance to...
NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities Hugo E. Gottlieb,* Vadim Kotlyar, and Abraham Nudelman* Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel Received June 27, 1997 In the course of the routine use of NMR as an aid for organic chemistry...
Goldberg, NMR Chemical Shifts of Trace Impurities: Common Laboratory Solvents, Organics, and Gases in Deuterated Solvents Relevant to the Organometallic Chemist, Organometallics 29 (2010) 2176- 2179.Fulmer, G. R., Miller, A. J., Sherden, N. H., Gottlieb, H. E., Nudelm...
NMR studies on effects of temperature, pressure, and fluorination on structures and dynamics of alcohols in liquid and supercritical states We measured 1H NMR chemical shifts (delta H) and 1H and 2H NMR spin-lattice relaxation times (1H- and 2H-T1) of methanol, ethanol, 2-propanol, 2,2,2...
pubs.acs/OrganometallicsrXXXXAmericanChemicalSociety OrganometallicsXXXX,XXX,000–000A DOI:10.1021/om100106e NMRChemicalShiftsofTraceImpurities:Common LaboratorySolvents,Organics,andGasesinDeuterated SolventsRelevanttotheOrganometallic Chemist GregoryR.Fulmer,* ,† AlexanderJ.M.Miller, ‡ NathanielH.Sherden...
Two sets of NMR characteristics had to be evaluated during this work [27]: 1H-1H coupling constants and 1H chemical shifts (Tables 1 and 2, respectively). Chemical shifts for the two skewed conformers (OS2 and 3S1) and for the both chair conformations (4C1 and 1C4) of sulfated monosac...
Common Organic Solvents42Fulmer, Gregory R., et al. “NMR Chemical Shifts of Trace Impurities: Common Laboratory Solvents, Organics, and Gases in Deuterated Solvents Relevant to the Organometallic Chemist.”Organometallics, vol. 29, no. 9, May 2010, pp. 2176–79. ...
1H NMR (500 MHz, CDCl3) δ 0.03 (s, 1.5H, SiCH3), 0.04 (s, 4.5H, SiCH3), 0.88 (s, 9H, SiC(CH3)3), 1.40 (s, 2.25H, C(CH3)3), 1.45 (s, 6.75H, C(CH3)3), 2.07 (m, 1H, CHAHB), 2.18 (m, 1H, CHABB), 2.78 (m, 0.2H, CHCH = CH2), 3.00 (td, J = 9.43...
The mixture was stirred for 1 h and then lyophilized to give a residue, which was purified by HPLC under the same conditions as 4a to afford 5a (50.5 mg, 95%). 5a: an amorphous solid; 1H-NMR (300 MHz, CD3OD) d7.58 (1H, s), 7.25 (1H, d, J¼8.4 Hz), 6.73 (1H, d, J...