检索结果-南通市图书馆

crystal Structure of 2-(2-carboxy-4-hydroxy-6-methoxyphenoxy)-3,5-dichloro-6-hydroxy-4-methylbenzoic Acid 1-Methyl Ester

在线全文

学校读者我要写书评

暂无评论

chinese Journal of Structural chemistry 2013年第11期32卷 1742-1748页

作者： suchada Jongrungruangchok Thammarat Aree Sanya Sureram Prasat Kittakoop Department of Pharmaceutical chemistry Faculty of PharmacyRangsit University Department of chemistry Faculty of ScienceChulalongkorn University chulabhorn Research Institute Vibhavadi-Rangsit Highway chulabhorn Graduate Institute and the center for Environmental Health Toxicology and Management of ChemicalsChemical Biology ProgramVibhavadi-Rangsit Highway

The title compound, neogeodin hydrate （c17H14c1208, cAS： 94540-50-8）, was derived from marine fungus Aspergilhts terreus cRIM301. It was unequivocally characterized by IR, NMR spectroscopies, and single-crystal X-ray crystallography and tested for various biological activities. Neogeodin hydrate crystallizes in the triclinic space group P1 with a = 8.1159（5） A, b = 8.2472（4） A, c= 14.1278（7） A, a = 81.448（2）°, β = 84.860（2）°, γ= 70.400（2）°, V = 880.13（8） A3; Z = 2. It comprises a diphenyl ether, asterric acid skeleton and dichloro substituents. The methoxyphenoxy rings of the inversely related molecules form a ribbon-like structure that is stabilized by O-H...O hydrogen bonds through the doubly disordered carboxyl groups and by c-H...O interactions, generating the same R22（8） ring motif. The chlorinated methylbenzoate rings, making mostly a right angle, link the parallel upper and lower ribbons via bifurcated O-H...O and c-H...O hydrogen bonds, yielding endless channels. The channels formed are further sustained by c-H...O and π...π interactions Neogeodin hydrate exhibits inhibition against superoxide anion radical formation in the xanthine/xanthine oxidase （XXO） assay, but has no aromatase inhibitory activity.

关键词： Aspergiilus terreus biological activity hydrogen bonds,marine natural products neogeodin hydrate

Effect of high-pressure homogenization on stability of emulsions containing zein and pectin

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Pharmaceutical Sciences 2017年第1期12卷 21-27页

作者： Maneerat Juttulapa suchada Piriyaprasarth Hirofumi Takeuchi Pornsak Sriamornsak Department of Pharmaceutical Technology Faculty of PharmacySilpakorn UniversityNakhon Pathom 73000Thailand Pharmaceutical Biopolymer Group(PBiG) Faculty of PharmacySilpakorn UniversityNakhon Pathom 73000Thailand Laboratory of Pharmaceutical Engineering Gifu Pharmaceutical University1-25-4 Daigaku-NishiGifu 501-1196Japan

The aim of this study was to investigate the effect of high-pressure homogenization on the droplet size and physical stability of different formulations of pectin–zein stabilized rice bran oil emulsions. The obtained emulsions, both before and after passing through highpressure homogenizer, were subjected to stability test under environmental stress conditions,that is, temperature cycling at 4 °c/40 °c for 6 cycles and centrifugal test at 3000 rpm for 10 min. Applying high-pressure homogenization after mechanical homogenization caused only a small additional decrease in emulsion droplet size. The droplet size of emulsions was influenced by the type of pectin used;emulsions using high methoxy pectin(HMP) were smaller than that using low methoxy pectin(LMP). This is due to a greater emulsifying property of HMP than LMP. The emulsions stabilized by HMP–zein showed good physical stability with lower percent creaming index than those using LMP, both before and after passing through high-pressure homogenizer. The stability of emulsions after passing through high-pressure homogenizer was slightly higher when using higher zein concentration, resulting from stronger pectin–zein complexes that could rearrange and adsorb onto the emulsion droplets.

关键词： Pectin Zein Emulsions High-pressure homogenization Stability

间苯二甲酸连接的氢键导致的二维锌配位聚合物的合成及晶体结构

在线全文

学校读者我要写书评

暂无评论

无机化学学报 2001年第6期17卷 917-920页

作者：李彬孙跃飞苟少华姚景才 suchada chantrapromma Hoong-Kun Fun 南京大学配位化学重点实验室南京210093 洛阳师范学院化学系河南洛阳471022 圣马来西亚大学物理系

A H-bond induced two-dimensional in finite coordination polymer[Zn(1,3-BDc)(Im)2]n·2ncH3 OH(1,3-BDc =1,3-benzenedicarboxylate,Im =imidazole)was synthesized and crystallo-graphically determined by X-ray dif *** crystal structure belongs to monoclinic system with space group c2/c.a=23.1836(2),b=10.1905(1),c=17.0118(2)?,β=115.099°,V=3639.58(6)?3,D=1.499g·cm-3,Z =8,F000=1688,μ=1.384mm-1,R1=0.0715,wR2=*** Zn?ion is four-coordinated with a geome try of distorted *** 1,3-BDc acts as a bridge to bond two neighboring zinc ions,leading to an infinite o ne-dimensional chainlike coordination *** chain wa s linked by hydrogen bonds with its neighbors to form a two-dimensional net.

关键词：锌(Ⅱ)配合物氢键晶体结构二维配位聚合物合成晶体结构间苯二甲酸

在线全文

学校读者我要写书评

暂无评论

一种锌(II)配合物的合成和晶体结构

安徽大学学报（自然科学版） 2004年第3期28卷 60-64页

作者：吴勇孔林杨家祥田玉鹏 suchada chantrapromm FUN Hoong Kun 安徽大学化学化工学院安徽合肥230039 X -ray crystallography Unit School of Physics University Sains Malaysia

合成了目标配合物:碘化双 [3,4 二甲氧基苯甲醛缩氨基硫脲]合锌(II),其结构通过单晶X 射线衍射法确定。晶体属单斜晶系,c2/c空间群。配合物分子中,锌(II)与两个硫原子、两个碘原子配位形成轻微畸变的四面体结构,每一个3,4 二甲氧基苯甲... 详细信息

合成了目标配合物:碘化双 [3,4 二甲氧基苯甲醛缩氨基硫脲]合锌(II),其结构通过单晶X 射线衍射法确定。晶体属单斜晶系,c2/c空间群。配合物分子中,锌(II)与两个硫原子、两个碘原子配位形成轻微畸变的四面体结构,每一个3,4 二甲氧基苯甲醛缩氨基硫脲配体与锌离子处于同一平面内,在晶体中分子之间以氢键连接形成网状结构。

关键词：锌配合物合成晶体结构非线性光学材料四面体结构

硫代碳酰肼缩邻香草醛的合成、晶体结构及非线性光学性质的研究

在线全文

学校读者我要写书评

暂无评论

化学世界 2006年第2期47卷 94-98页

作者：周虹屏李东梅卜继琴金凤朱永敏张居舟吴际吴杰颖田玉鹏 suchada chantrapromma FUN Hoong-Kun 安徽大学化学化工学院安徽 X-ray crystallography Unit School of PhysicsUniversity Sains Malaysia11800USMPenangMalaysia

报道合成了一种新的化合物硫代碳酰肼缩邻香草醛(1)(c19H22N5O4S,Mr=416.48),通过元素分析、红外光谱、紫外光谱和氢核磁共振谱对其结构进行了表征。用X-射线单晶衍射测定了其晶体结构。结果表明:晶体属于三斜晶系,P1-空间群,晶胞参数:a... 详细信息

报道合成了一种新的化合物硫代碳酰肼缩邻香草醛(1)(c19H22N5O4S,Mr=416.48),通过元素分析、红外光谱、紫外光谱和氢核磁共振谱对其结构进行了表征。用X-射线单晶衍射测定了其晶体结构。结果表明:晶体属于三斜晶系,P1-空间群,晶胞参数:a=0.9983(1)nm,b=1.0509(1)nm,c=1.0748(1)nm,α=90.089(2)°,β=110.033(2)°,γ=103.069(2)°。用开孔Z-扫描技术在523 nm脉冲激光波长下研究了该化合物的DMF溶液的三阶非线性光学性质。单晶数据注册编号:ccDc 240088。

关键词：硫代碳酰肼缩邻香草醛 X-射线单晶衍射 Z-扫描

Fungal diversity notes 253-366:taxonomic and phylogenetic contributions to fungal taxa

在线全文

学校读者我要写书评

暂无评论

Fungal Diversity 2016年第3期78卷 1-237页

作者： Guo Jie Li Kevin D.Hyde Rui Lin Zhao Sinang Hongsanan Faten Awad Abdel-Aziz Mohamed A.Abdel-Wahab Pablo Alvarado Genivaldo Alves-Silva Joseph F.Ammirati Hiran A.Ariyawansa Abhishek Baghela Ali Hassan Bahkali Michael Beug D.Jayarama Bhat Dimitar Bojantchev Thitiya Boonpratuang Timur S.Bulgakov Erio camporesi Marcela cBoro Oldriska ceska Dyutiparna chakraborty Jia Jia chen K.W.Thilini chethana Putarak chomnunti Giovanni consiglio Bao Kai cui Dong Qin Dai Yu cheng Dai Dinushani A.Daranagama Kanad Das Monika c.Dayarathne Eske De crop Rafael J.V.De Oliveira carlos Alberto Fragoso de Souza JoséIde Souza Bryn T.M.Dentinger Asha J.Dissanayake Mingkwan Doilom E.Ricardo Drechsler-Santos Masoomeh Ghobad-Nejhad Sean P.Gilmore Aristóteles Góes-Neto MichałGorczak charles H.Haitjema Kalani Kanchana Hapuarachchi Akira Hashimoto Mao Qiang He John K.Henske Kazuyuki Hirayama Maria J.Iribarren Subashini c.Jayasiri Ruvishika S.Jayawardena Sun Jeong Jeon Gustavo H.Jerônimo Ana L.Jesus E.B.Gareth Jones Ji chuan Kang Samantha c.Karunarathna Paul M.Kirk Sirinapa Konta Eric Kuhnert Ewald Langer Haeng Sub Lee Hyang Burm Lee Wen Jing Li Xing Hong Li Kare Liimatainen Diogo Xavier Lima chuan Gen Lin Jian Kui Liu Xings Zhong Liu Zuo Yi Liu J.Jennifer Luangsa-ard Robert Lücking H.Thorsten Lumbsch Saisamorn Lumyong Eduardo M.Leaño Agostina V.Marano Misato Matsumura Eric H.c.McKenzie suchada Mongkolsamrit Peter E.Mortimer Thi Thuong Thuong Nguyen Tuula Niskanen chada Norphanphoun Michelle A.O’Malley Sittiporn Parnmen Julia Pawłowska Rekhani H.Perera Rungtiwa Phookamsak chayanard Phukhamsakda carmen L.A.Pires-Zottarelli Olivier Raspé Mateus A.Reck Sarah c.O.Rocha AndréL.c.M.Ade Santiago Indunil c.Senanayake Ledo Setti Qiu Ju Shang Sanjay K.Singh Esteban B.Sir Kevin V.Solomon Jie Song Prasert Srikitikulchai Marc Stadler Satinee Suetrong Hayato Takahashi Takumasa Takahashi Kazuaki Tanaka Li Ping Tang Kasun M.Thambugala Donnaya Thanakitpipattana Michael K.Theodorou Benjarong Thongbai Tuksaporn Thummarukcharoen Qing Tian Saowaluck Tibpromma Annemieke State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesNo 31st West Beichen RoadChaoyang DistrictBeijing 100101People’s Republic of China centre of Excellence in Fungal Research and School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Department of Botany and Microbiology College of ScienceKing Saud UniversityP.O.Box:2455Riyadh 1145Saudi Arabia Department of Botany and Microbiology Faculty of ScienceSohag UniversitySohag 82524Egypt ALVALAB C/La Rochela nº47E-39012 SantanderSpain Micolab Programa de Pós-Graduação em Biologia de FungosAlgas e PlantasDepartamento de BotânicaUniversidade Federal de Santa CatarinaCampus Universitário TrindadeCEP:88040-900 FlorianópolisSanta CatarinaBrazil Department of Biology University of WashingtonBox 351800SeattleWA 98195-1800USA Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouPeople’s Republic of China National Fungal culture collection of India(NFccI) Biodiversity and Palaeobiology GroupMACS’Agharkar Research InstituteG.G.Agarkar RoadPune 411004India PO Box 116 HusumWA 98623-0116USA Formerly Department of BotanyGoa UniversityGoaIndia No.128/1-J Azad Housing SocietyCurcaP.O.Goa Velha 403108India *** 345 Shipwatch LaneHerculesCA 94547USA Microbe Interaction Laboratory(BMIT) BIOTECNational Science and Technology Development Agency(NSTDA)113 Thailand Science ParkThanon PhahonyothinTombon Khlong NuengAmphoeKhlong LuangPathum Thani 12120Thailand Academy of Biology and Biotechnology Southern Federal UniversityRostov-on-Don 344090Rostov regionRussia A.M.B.Gruppo Micologico Forlivese BAntonio“cicognani” Via Roma Forlì Italy 18 A.M.B.Circolo Micologico“Giovanni Carini”C.P.314BresciaItaly Societàper gli Studi Naturalistici della Romagna C.P.144Bagnacavallo

Notes on 113 fungal taxa are compiled in this paper,including 11 new genera,89 new species,one new subspecies,three new combinations and seven reference *** geographic and taxonomic range of fungal taxa are *** the Ascomycota the new genera Angustospora(Testudinaceae),camporesia(Xylariaceae),clematidis,crassiparies(Pleosporales genera incertae sedis),Farasanispora,Longiostiolum(Pleosporales genera incertae sedis),Multilocularia(Parabambusicolaceae),Neophaeocryptopus(Dothideaceae),Parameliola(Pleosporales genera incertae sedis),and Towyspora(Lentitheciaceae)are *** introduced species are Angustospora nilensis,Aniptodera aquibella,Annulohypoxylon albidiscum,Astrocystis thailandica,camporesia sambuci,clematidis italica,colletotrichum menispermi,***,comoclathris pimpinellae,crassiparies quadrisporus,cytospora salicicola,Diatrype thailandica,Dothiorella rhamni,Durotheca macrostroma,Farasanispora avicenniae,Halorosellinia rhizophorae,Humicola koreana,Hypoxylon lilloi,Kirschsteiniothelia tectonae,Lindgomyces okinawaensis,Longiostiolum tectonae,Lophiostoma pseudoarmatisporum,Moelleriella phukhiaoensis,***,Mucoharknessia anthoxanthi,Multilocularia bambusae,Multiseptospora thysanolaenae,Neophaeocryptopus cytisi,Ocellularia arachchigei,***,Ochronectria thailandica,Ophiocordyceps karstii,Parameliola acaciae,***,Parastagonospora cumpignensis,Pseudodidymosphaeria phlei,Polyplosphaeria thailandica,Pseudolachnella brevifusiformis,Psiloglonium macrosporum,Rhabdodiscus albodenticulatus,Rosellinia chiangmaiensis,Saccothecium rubi,Seimatosporium pseudocornii,***,Sigarispora ononidis and Towyspora *** combinations are provided for Eutiarosporella dactylidis(sexual morph described and illus trated)and Pseudocamarosporium ***,illustrations and/or reference specimens are designated for Aposphaeria corallinolutea,cryptovalsa ampelina,Dothiorella vidmadera,Ophiocordyceps formosana,P

关键词： Ascomycota Basidiomycota Neocallimastigomycota Oomycota.Zygomycota Phylogeny Taxonomy New genus New species