TY - JOUR
T1 - Polycyclic aromatic hydrocarbons in Australian coals II. Novel tetracyclic components from Victorian brown coal
AU - Chaffee, Alan L.
AU - Strachan, Michael G.
AU - Johns, R. B.
PY - 1984/10
Y1 - 1984/10
N2 - Gas chromatographic-mass spectrometric (GC-MS) analysis of a polycyclic aromatic hydrocarbon (PAH) fraction of a Victoria brown coal sample has revealed the presence of a novel series of tetracyclic triterpenoid derived components. The base peak of their mass spectra, at m/z 169, suggests an 8, 14-seco (C-ring cleaved) structural configuration with the triterpenoid derived A- and B-rings fully aromatized. Photochemically induced or acid-catalyzed processes are seen as two possibilities to account for the diagenetic formation of these compounds.
AB - Gas chromatographic-mass spectrometric (GC-MS) analysis of a polycyclic aromatic hydrocarbon (PAH) fraction of a Victoria brown coal sample has revealed the presence of a novel series of tetracyclic triterpenoid derived components. The base peak of their mass spectra, at m/z 169, suggests an 8, 14-seco (C-ring cleaved) structural configuration with the triterpenoid derived A- and B-rings fully aromatized. Photochemically induced or acid-catalyzed processes are seen as two possibilities to account for the diagenetic formation of these compounds.
UR - http://www.scopus.com/inward/record.url?scp=0021283209&partnerID=8YFLogxK
U2 - 10.1016/0016-7037(84)90384-3
DO - 10.1016/0016-7037(84)90384-3
M3 - Article
AN - SCOPUS:0021283209
SN - 0016-7037
VL - 48
SP - 2037
EP - 2043
JO - Geochimica et Cosmochimica Acta
JF - Geochimica et Cosmochimica Acta
IS - 10
ER -