Triamminemonoaquocobalt(III) complexes of pyrophosphate and adenosine diphosphate (ADP).
Cobalt(III)H2O(NH3)3 pyrophosphate has been shown by proton and 31P nuclear magnetic resonance (NMR) to be a facial bidentate complex. Cobalt(III)H2O(NH3)3 adenosine diphosphate has been resolved into lambda and delta isomers by chromatography on cycloheptaamylose. Both the lambda and delta forms are a pair of isomers that are not separated by cycloheptaamylose, reverse phase high-pressure liquid chromatography (HPLC), or cation exchange chromatography. These isomers presumably represent syn- and anti-arrangement of coordinated water and adenosine.
Speckhard
D C
DC
Department of Biochemistry, University of Wisconsin, Madison 53706.
Knight
W B
WB
Rawlings
J
J
Cleland
W W
WW
D000244:Adenosine Diphosphate / Q000032:analysis*; D003035:Cobalt / Q000032:analysis*; D011756:Diphosphates / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D000644:Quaternary Ammonium Compounds / Q000032:analysis*; D013053:Spectrophotometry; D013237:Stereoisomerism
D011756:Diphosphates; D000644:Quaternary Ammonium Compounds; D003035:Cobalt; D000244:Adenosine Diphosphate