A coupled 1,4-dihydrylpyridine compound（C40H48N2O10,1） has been synthesized.Its structure was determined by single-crystal X-ray diffraction.The crystal is of monoclinic system,space group P21/c with a = 8.3300（2）...A coupled 1,4-dihydrylpyridine compound（C40H48N2O10,1） has been synthesized.Its structure was determined by single-crystal X-ray diffraction.The crystal is of monoclinic system,space group P21/c with a = 8.3300（2）,b = 15.720（3）,c = 14.480（3）,β = 90.08（3）°,V = 1896.1（7） 3,Z = 2,Mr = 716.80,Dc = 1.255 g/cm3,and F（000） = 764.The structure was solved by direct methods and refined by full-matrix least-squares method to the final R = 0.0556 and wR = 0.1499（I 2σ（I））.There exist several supramolecular motifs in the crystal structure.The compound exhibits strong photoluminescence in the solid state at room temperature.展开更多
One monoaromatic tricyclic diterpane and two aromatic tricyclic diterpanes were found in three low-maturity source rocks and five crude oils of the Tertiary Shahejie Formation in Shengli Oil Field. The compounds found...One monoaromatic tricyclic diterpane and two aromatic tricyclic diterpanes were found in three low-maturity source rocks and five crude oils of the Tertiary Shahejie Formation in Shengli Oil Field. The compounds found include C19H28 (m/z 145, M+ 256) ring-C monoaromatic tricyclic terpane, C17H20 (m/z 209, M+ 224) and C18H22 (m/z 223,M+ 238) rings-B,C diaromatic diterpanes. The results show that these compounds are biomarkers of immature organic matter with a stability sequence of C18H22 】 C17H20 】 C19H28. The cleavage of ring-D of pentacyclic triterpanoids, such as oleanene, hopene, fernene, ursene, in the early stage of diagenesis may be one of the origin pathways of rings-B, C diaromatic tricyclic diterpanes.展开更多
基金supported by the Key Project of Chinese Ministry of Education (No.208116)the Scientific and Technological Project of CQEC (No.KJ080829)the Chongqing Normal University Scientific Research Foundation Project (No.06XLY016)
文摘A coupled 1,4-dihydrylpyridine compound（C40H48N2O10,1） has been synthesized.Its structure was determined by single-crystal X-ray diffraction.The crystal is of monoclinic system,space group P21/c with a = 8.3300（2）,b = 15.720（3）,c = 14.480（3）,β = 90.08（3）°,V = 1896.1（7） 3,Z = 2,Mr = 716.80,Dc = 1.255 g/cm3,and F（000） = 764.The structure was solved by direct methods and refined by full-matrix least-squares method to the final R = 0.0556 and wR = 0.1499（I 2σ（I））.There exist several supramolecular motifs in the crystal structure.The compound exhibits strong photoluminescence in the solid state at room temperature.
文摘One monoaromatic tricyclic diterpane and two aromatic tricyclic diterpanes were found in three low-maturity source rocks and five crude oils of the Tertiary Shahejie Formation in Shengli Oil Field. The compounds found include C19H28 (m/z 145, M+ 256) ring-C monoaromatic tricyclic terpane, C17H20 (m/z 209, M+ 224) and C18H22 (m/z 223,M+ 238) rings-B,C diaromatic diterpanes. The results show that these compounds are biomarkers of immature organic matter with a stability sequence of C18H22 】 C17H20 】 C19H28. The cleavage of ring-D of pentacyclic triterpanoids, such as oleanene, hopene, fernene, ursene, in the early stage of diagenesis may be one of the origin pathways of rings-B, C diaromatic tricyclic diterpanes.
