Quarterly Journal of the Chemical Society of London, Part 1, Pages 1033-2076 |
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Page 1035
... Frequencies ( in cm . - 1 ) of thio- and seleno - lactams ( c 0 · 001м in CCl1 , 7 5 cm . ) the system . The v ( NH ) frequency of selenopyrrolidone is raised as a result of ring strain to 3418-5 cm . - 1 and is anomalous for cis ...
... Frequencies ( in cm . - 1 ) of thio- and seleno - lactams ( c 0 · 001м in CCl1 , 7 5 cm . ) the system . The v ( NH ) frequency of selenopyrrolidone is raised as a result of ring strain to 3418-5 cm . - 1 and is anomalous for cis ...
Page 1036
... frequencies of thio- and seleno - hexanolactams lie at 3399.5 and 3387.5 cm . - 1 respectively . At least two planar cis - conformations of envelope ( VIII ) and boat - type ( IX ) are possible for this seven - membered ring as is also ...
... frequencies of thio- and seleno - hexanolactams lie at 3399.5 and 3387.5 cm . - 1 respectively . At least two planar cis - conformations of envelope ( VIII ) and boat - type ( IX ) are possible for this seven - membered ring as is also ...
Page 1037
... frequencies of associated thiolactams at 0.05M in carbon tetrachloride together with the solid - state frequencies . Figure 5 shows the 3u region solid - state spectra of thiolactams . n e 3 7 = 7 ; V ( NH ) Lactam ( cm . ) - FIGURE 4 ...
... frequencies of associated thiolactams at 0.05M in carbon tetrachloride together with the solid - state frequencies . Figure 5 shows the 3u region solid - state spectra of thiolactams . n e 3 7 = 7 ; V ( NH ) Lactam ( cm . ) - FIGURE 4 ...
Contents
Dolcetti G See Peloso A 1506 | 1031 |
Structures of cyclic amides Part III Thio and selenolactams | 1033 |
Equilibria in solutions which contain a metal ion and an aminoacid | 1039 |
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¹H n.m.r. spectrum absorption acetaldehyde acetone acid adduct Amer anion aqueous atoms bands benzene bond bromine trifluoride calculated carbon catalyst cation Chem chemical Chemistry chloride cm.¹ co-ordination cobalt(II coefficients complexes compounds concentration configuration corresponding coupling constant crystals cyanide dehy gel dichloromethane dilute doublet electronic energy equation ethanol ether experimental Figure five-co-ordinate fluorine formation frequencies halide heat hydrogen hydrogen cyanide hydrolysis i.r. spectra Inorg iodide iodobenzene isomers k₁ kcal lactams ligand magnetic Mc./sec measured metal methyl mixture mmoles mole-¹ molecular molecule n.m.r. spectra nickel nickel(II nitric oxide nitrogen observed obtained octahedral orbital oxygen parameters phosphine phosphorus Phys plexes PMe,Ph potassium prepared present proton Raman reaction resonance room temperature sample scandium(III showed shown similar sodium solid solution solvent species structure sulphur Table thallium thio thiocyanate thiocyanogen thiolactams titration trans trimethylsilyl tris(trimethylsilyl values yellow