Journal of the Chemical SocietyThe Society., 1949 |
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Page 990
... molecules along the c axis and passes through the carboxyl group of the next molecule . ( 1 ) 0- M 1.23 A. FIG . 3 . AL 1 0 ( 2 ) 1.29 A. C ( 3 ) 1.52 A. C ( 2 ) 1-49 A. C ( 1 ) 1.54 A. 112 ° C ( 1 ' ) 1.49A . ( 2 ) C ( 115 ( 200 114 ...
... molecules along the c axis and passes through the carboxyl group of the next molecule . ( 1 ) 0- M 1.23 A. FIG . 3 . AL 1 0 ( 2 ) 1.29 A. C ( 3 ) 1.52 A. C ( 2 ) 1-49 A. C ( 1 ) 1.54 A. 112 ° C ( 1 ' ) 1.49A . ( 2 ) C ( 115 ( 200 114 ...
Page 993
... molecule . In the grouping of the molecules in the crystal there is again evidence of a fairly close lateral approach , as well as the usual end- to - end hydrogen bonding through the carboxyl groups . This type of lateral approach ...
... molecule . In the grouping of the molecules in the crystal there is again evidence of a fairly close lateral approach , as well as the usual end- to - end hydrogen bonding through the carboxyl groups . This type of lateral approach ...
Page 996
... molecule ; B reflected molecule ; C = O ( 2C ) O ( 14 ) • C ( 4'B ) C ( 2B ) 3.780.05 O ( 1A ) . O ( 1A ) C ( 4B ) C ( 3B ) 3.87 3.90 " = 3.96 " " molecule one translation along c axis . For many purposes it is convenient to list the co ...
... molecule ; B reflected molecule ; C = O ( 2C ) O ( 14 ) • C ( 4'B ) C ( 2B ) 3.780.05 O ( 1A ) . O ( 1A ) C ( 4B ) C ( 3B ) 3.87 3.90 " = 3.96 " " molecule one translation along c axis . For many purposes it is convenient to list the co ...
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4-dinitrophenylhydrazone absorption acetic anhydride acetone acetyl acidified added aldehyde alkaline aluminium chloride Amer amine ammonia aniline aqueous sodium atom benzene boiling bromine Calc carbon catalyst CH₂ Chem chloroform citrinin colourless needles compound condensation containing cooled crystallised crystallised from alcohol crystals cyanide cyclisation decomp derivative dilute dissolved distilled dried electrode ester evaporated extracted with ether filtered filtrate formed colourless Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone lactone light petroleum b. p. m. p. and mixed methanol method methyl alcohol minutes mixed m. p. mixture molecule obtained oxide phenol phosphoric picrate potassium hydroxide precipitate prepared pyridine reaction reduced pressure requires residue resin room temperature salt separated sodium hydroxide solid soluble solution solvent specimen structure substance sulphuric acid triethylamine values washed yellow needles yield