The Carboniferous volcanic reservoir in the Chepaizi Uplift became an exploration hot target in recent years for its substantial amount of oils discovered. However, most of the Carboniferous heavy oils were biodegrade...The Carboniferous volcanic reservoir in the Chepaizi Uplift became an exploration hot target in recent years for its substantial amount of oils discovered. However, most of the Carboniferous heavy oils were biodegraded to PM7 or higher with orders of magnitude variation in oil viscosities. Two oil groups (I and II) exactly corresponding to the western and eastern Chepaizi Uplift were distinguished according to their source diagnose. Furthermore, three oil families (II1, II2 and II3), with the biodegradation level of PM7, PM8–8+, PM9+, respectively, were classified based on molecular compositions and parameter-stripping method of strongly bioresistant parameters. Allowing for this extremely high biodegradation case, more biodegradation refractory compound class were added to establish a refined Manco scale to quantitatively evaluate the biodegradation extent. Refined Manco number (RMN2) positively correlated with the oil density, NSO contents, and absolute concentrations of diasteranes and gammacerane, negatively correlated with the absolute concentrations of diahopane, summed tricyclic terpanes and pentacyclic terpanes. This refined scale showed higher resolution than the PM one to differentiate the biodegradation extent of Carboniferous heavy oils from the Chepaizi Uplift, especially those with same PM values but different oil viscosities.展开更多
Using the hydrothermal reactions of Mn（Ⅱ） and Ba（Ⅱ） salts with 2-（3-hydroxylphenyl）-1H-imidazole-4,5-dicarboxylic acid（m-OHPhH3IDC）,two novel metal-organic frameworks,namely,{[Mn（mOHPhHIDC）（H2O）]2H2On（1...Using the hydrothermal reactions of Mn（Ⅱ） and Ba（Ⅱ） salts with 2-（3-hydroxylphenyl）-1H-imidazole-4,5-dicarboxylic acid（m-OHPhH3IDC）,two novel metal-organic frameworks,namely,{[Mn（mOHPhHIDC）（H2O）]2H2On（1） and {[Ba（m-OHPhH2IDC）2（H2O）3]-2H2O）n,（2） have been synthesized and structurally characterized by single-crystal X-ray crystallography,elemental analyses,and IR spectroscopy.Complex 1 features a novel non-interpenetrated three-dimensional（3,4）-connected network with one-dimensional open channels.Complex 2 exhibits a two-dimensional layered structure with rhombic grids.The role of the central metals in the formation of final architectures has been discussed.Furthermore,luminescent and thermal properties of the two complexes have been studied.展开更多
基金This work was funded by the National Natural Science Foundation of China(Grant No.42072172,41772120)the Shandong Province Natural Science Fund for Distinguished Young Scholars(Grant No.JQ201311)+1 种基金the SDUST Research Fund(Grant No.2015TDJH101)Associated editor Jie Hao and seven anonymous reviewers were deeply acknowledged for their critical comments and helpful suggestions,which greatly improved the early version of this manuscript.
文摘The Carboniferous volcanic reservoir in the Chepaizi Uplift became an exploration hot target in recent years for its substantial amount of oils discovered. However, most of the Carboniferous heavy oils were biodegraded to PM7 or higher with orders of magnitude variation in oil viscosities. Two oil groups (I and II) exactly corresponding to the western and eastern Chepaizi Uplift were distinguished according to their source diagnose. Furthermore, three oil families (II1, II2 and II3), with the biodegradation level of PM7, PM8–8+, PM9+, respectively, were classified based on molecular compositions and parameter-stripping method of strongly bioresistant parameters. Allowing for this extremely high biodegradation case, more biodegradation refractory compound class were added to establish a refined Manco scale to quantitatively evaluate the biodegradation extent. Refined Manco number (RMN2) positively correlated with the oil density, NSO contents, and absolute concentrations of diasteranes and gammacerane, negatively correlated with the absolute concentrations of diahopane, summed tricyclic terpanes and pentacyclic terpanes. This refined scale showed higher resolution than the PM one to differentiate the biodegradation extent of Carboniferous heavy oils from the Chepaizi Uplift, especially those with same PM values but different oil viscosities.
基金supported by the National Natural Science Foundation of China(NSFC)(Nos.21064006,21161018, 21262032)the Natural Science Foundation of Gansu Province (No.1010RJZA018)the Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(No.IRT1177)
基金the financial support by the National Natural Science Foundation of China(No.21341002)the Natural Science Foundation of Henan Education Department(No.13A150655)
文摘Using the hydrothermal reactions of Mn（Ⅱ） and Ba（Ⅱ） salts with 2-（3-hydroxylphenyl）-1H-imidazole-4,5-dicarboxylic acid（m-OHPhH3IDC）,two novel metal-organic frameworks,namely,{[Mn（mOHPhHIDC）（H2O）]2H2On（1） and {[Ba（m-OHPhH2IDC）2（H2O）3]-2H2O）n,（2） have been synthesized and structurally characterized by single-crystal X-ray crystallography,elemental analyses,and IR spectroscopy.Complex 1 features a novel non-interpenetrated three-dimensional（3,4）-connected network with one-dimensional open channels.Complex 2 exhibits a two-dimensional layered structure with rhombic grids.The role of the central metals in the formation of final architectures has been discussed.Furthermore,luminescent and thermal properties of the two complexes have been studied.
