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| 1 | Tailoring Excited State Properties and Energy Levels Arrangement via Subtle Structural Design on D-π-A Materials显示文摘 | Xiaoming Liang Zhiheng Wang Liangxuan Wang Muddasir Hanif Dehua Hu Shijian Su Zengqi Xie Yu Gao Bing Yang Yuguang Ma | 2017 | Chinese Journal of Chemistry2017,35,10: | 1 |
| 2 | 聚异丁烯丁二酰亚胺系列衍生物的合成及其对TiO_2纳米粒子的分散性能研究显示文摘合成了含有确定长度的聚异丁烯链段与4种不同的乙烯胺链段(乙二胺、二乙烯三胺、三乙烯四胺和四乙烯五胺)组合的聚异丁烯丁二酰亚胺系列衍生物,并将它们用作TiO2纳米粒子在非极性溶剂中的分散剂.详细考察了亲水/亲油基团大小对分散性能的影响规律:当聚异丁烯链段的分子量为2000时,随着乙烯胺段链长的增加,TiO2粒子的粒径和Zeta电位分别呈现递减和递增的趋势,而分散剂的吸附量反而减少,证明了随着乙烯胺段链长的增加,分散剂和粒子表面的相互作用越强,分散效果越好;而当乙烯胺段都为四乙烯五胺时,聚异丁烯链段的分子量为2000时分散性能要比分别为1000和3000时好.由此,获得分散剂最佳的HLB(hydrophile-lipophile balance)值应在2.5左右.采用该分散剂处理的TiO2粒子,可实现良好的电泳显示. | 戴树洌 施敏敏 Hanif Muddasir 刘胜 陈红征 | 2011 | 化学学报2011,69,20: | 1 |
| 3 | Revolution in the diagnosis and management of hepatitis C virus infection in current era显示文摘Chronic hepatitis C virus(HCV)infection is a major global public health problem,particularly in developing part of the world.Significant advances have been made in the early diagnosis and treatment of the disease.Its management has been particularly revolutionized during the past two decades.In this review,we summarize the major advances in the diagnostic and management armamentarium for chronic HCV infection.The focus of the present review is on the newer directly acting anti-viral agents,which have revolutionized the management of chronic HCV infection.Management of uncomplicated chronic HCV infection and of specific complications and special at-risk populations of patients will be covered in detail.Despite the advent and approval of highly effective and well tolerable oral agents,still many challenges remain,particularly the affordability,the equitable distribution and access to later drugs.The World Health Organization aims to eliminate viral hepatitis including HCV by 2030 since its poses a major public health threat.There is an urgent need to ensure uniform and early access to diagnostic and therapeutic facilities throughout the world if the later goal has to be realized. | Farina M Hanif Zain Majid Nasir Hassan Luck Abbas Ali Tasneem Syed Muddasir Laeeq Muhammed Mubarak | 2022 | World Journal of Hepatology2022,14,4: | 1 |
| 4 | Preparation and electronic characteristics of anionic perylene bisimide films显示文摘Neutral perylene bisimides(PBI) are well-known n-type organic semiconductors, with number of challenging electronic properties in their neutral and reduced states. We report the characteristic electronic properties of PBI anionic films. We unexpectedly discovered that pristine PBI dianion film showed p-type character, while oxidized dianion film(dominant neutral state with few radical anions) showed normal n-type semiconductor character based on Seebeck effect measurements. Both kinds of films exhibit high electrical conductivity with a potential for thermoelectric applications. The mechanism of polarity reversal is proposed. | Wenqiang Zhang Qinglin Jiang Jiadong Zhou Dehua Hu Xuehong Zhou Weitao Ma Muddasir Hanif Zengqi Xie Linlin Liu Yuguang Ma | 2017 | Science China Chemistry2017,60,10: | 0 |
| 5 | Molecular Properties of 9,10-Phenanthrenequinone and Benzil显示文摘9,10-Phenanthrenequinone(PQ) and benzil are important α-diketones. This manuscript explains the first comparison of PQ and benzil molecular properties. We have used 1H NMR, 13C NMR, 1H-1H COSY, HMBC, HMQC, UV-Vis absorption and emission, CV and TGA experiments to study PQ and benzil that provided the following novel results. (1) The 1H NMR(CDCl3) of PQ show δ 8.19(H1), 8.02(H4), 7.72(H3), 7.47(H2) instead of an earlier reported δ 8.25(H4), 8.08(H1), 7.80(H2), 7.55(H3); (2) in the 13C NMR(CDCl3), the C9/C10(C=O) signal of PQ appears upfield(δ 180.3) compared to C9/C10(C=O) signal of benzil(δ 194.5), which shows higher electrophilic character(more attractive for nucleophiles) of C9/C10(C=O) of benzil; (3) the first λmax for the UV-Vis absorption and emission of PQ are blue-shifted compared to benzil despite increased conjugation attributed to the different symmetries(C2v for PQ and C2h for Benzil) of the two molecules; (4) the emission spectrum of benzil is broader compared to that of PQ due to slower relaxation of the excited state; (5) The CV study shows that PQ and benzil are good electron acceptors and PQ shows a better reduction process than benzil due to an extra ring that provides stability for the reduced species(mono or diradical anions); (6) TGA shows the higher thermal stability of PQ than benzil attributed to the presence of phenanthrene unit in PQ. | Muddasir Hanif | 2009 | Chemical Research in Chinese Universities2009,25,6: | 0 |
| 6 | Mechanistic Aspects of Monomer, Polymer Formation, and Synthesis of PQ-Alt-Dialkyl-fluorene Conjugated Copolymer显示文摘Suzuki coupling reaction is widely used in the construction of conjugated polymers; however, there is still no report describing the mechanism and coupling of 9,10-phenanthrenequinone(PQ) building blocks via Suzuki reaction because PQ is sensitive to bases and light. Herein is reported the efficient Suzuki coupling of PQ with 9,10-dialkylfluorene with Na2CO3 as basic species and high molecular weight PQ-Alt-Dialkyl-Fluorene conjugated copolymer obtained in an yield of 42%. Based on the characterization data and well-accepted literature, we proposed a step-by-step mechanistic explanation for the formation of the PQ containing alternating conjugated copolymer. | Muddasir Hanif LU Ping ZHENG Yan LI Mao XIE Zeng-qi MA Yu-guang LI Di LI Jing-hong | 2008 | Chemical Research in Chinese Universities2008,24,1: | 0 |
| 7 | Synthesis,GC-EIMS,~1H NMR,^(13)C NMR,Mechanistic and Thermal Studies of o-Xylylene-α,α'-bis (triphenylphosphinebromide)显示文摘Organophosphorous compounds containing phosphorus as an integral part have been widely used in industry, organic synthesis and optoelectronics. o-Xylylene-α,α'-bis(triphenylphosphinebromide)(OXBTPPB) is a facile reagent to convert o-quinones(e.g., 9,10-phenanthrenequinone) into polycyclic aromatic hydrocarbons(PAHs). Herein lies an improved synthetic route to OXBTPPB. The resultant was carefully characterized with GC-EIMS, 1H NMR, 13C NMR, spectroscopic techniques. The EIMS shows characteristic peaks at m/z=262.4, 183.3, 108.2, 77.1 attributed to the [C18H15P]+·, [C12H8P]+, [C6H5P]+, [C6H5]+ ions, respectively. The 1H and 13C NMR spectrum shows well resolved peaks and all the hydrogens and carbons were well-assigned via a combined study of 1H-1H COSY, HMBC, and HMQC experiments. The mechanism for the formation of OXBTPPB was proposed based on literature and obtained experimental data. Meanwhile, the thermal stability of OXBTPPB was evaluated with TGA analysis, and an onset decomposition temperature(Td) was recorded at 323.6 °C. | Muddasir Hanif | 2009 | Chemical Research in Chinese Universities2009,25,5: | 0 |
| 8 | Thermal and Optoelectronic Properties of Anthracene and Dibenz[a,c]Anthracene显示文摘 | MUDDASIR Hanif WANG Zhi-ming YANG Bing LU Ping MA Yu-guang | 2013 | Chemical Research in Chinese Universities2013,29,1: | 0 |
| 9 | Sono-chemical Synthesis and Mechanism of Dibenz[a,c]anthracene显示文摘Planar polycyclic aromatic hydrocarbons have important applications in optoelectronics,environmental chemistry and cancer researches.An improved sono-chemical synthetic procedure of dibenz[a,c]anthracene(D[a,c]A) was reported in this work.The yield was increased to 56% and the resultant was carefully characterized via gas chromatography-electron impact mass spectrometry(GC-EIMS),matrix assisted laser desorption ionization-time of flight(MALDI-TOF),1 H NMR,13 C NMR,correlation spectrometry(1 H1 H COSY),heteronuclear multiple bond correlation(HMBC) and heteronuclear multiple quantum coherence(HMQC).Based on the characterization data,we proposed a 4-step mechanistic explanation for the formation of D[a,c]A under sono-chemical bis-ortho-Wittig reaction conditions. | MUDDASIR Hanif WANG Zhi-ming LU Ping MAYu-guang | 2012 | Chemical Research in Chinese Universities2012,28,2: | 0 |