Author''''s Index Vol.13.2002

Author Index Vol.13.2002 AISA H.A. (0515) AN T.Y. (0623) AN Y.L. (0448) BAI A.P. (0296) BAI D.L. (0023) BAI D.L. (0809) BAI J. (0351) BAI L. (0029) BAO G.H. (0237) BAO G.H. (0955) BAO J.K. (0223) BAO J.X. (0515) BEI J.Z. (0033) BI Z.M. (0535) BIE P.Y. (0167) BIE P.Y. (0830) BIE P.Y. (0935) BO T. (0269) BO T. (0877) BU H.T. (0456) CAI B. (0327) CAI B. (0851) CAI J.C. (0113) CAI J.C. (0201) CAI J.C. (0515) CAI J.C. (0818) CAI J.X. (0617) CAI M…     

Authour Index Vol.12,2001

ABLIZ Z. (0513) AI X.C. (0983) AISA H.A. (0883) AN J.Y. (0117) BA L. (1113) BAI A.P. (0775) BAI D.L. (0113) BAI D.L. (0403) BAI F.L. (0369) BAI Y.B. (0271) BAO J.X. (0883) BAO X.F. (0909) BAO X.F. (0967) BARRAULT J. (0823) BERNEKER A. (0211) BI W. (0965) CAI G.M. (0651) CAI J.C. (0883) CAI J.C. (0961) CAI M.Z. (0861) CAI Q.S. (0511) CAI R. (0835) CAI S.M. (0073) CAI T.X. (0125) CAI T.X. (0647) CAI Y. (0215) CAI Y. (1139) CAO A.C. (0021) C…     

Author Index Vol.14.2003

ABLIZ Z. (0499) AKAO T. (1271) AN L. K. (0557) AN T. Y. (0489) ANTZUTKIN O. (0188) BAI H. X. (0290) BAI Q. (0294) BAI Q. (0824) BAO J. C. (1171) BAO L. J. (0503) BAO W. L. (0239) BAO W. L. (0993) BAO X. H. (0087) BAO X. P. (0115) BIE P. Y. (0441) BO Q. B. (0197) BOSTR諱 D. (0188) BU X. Z. (0557) CAI C. X. (1171) CAI G. L. (0094) CAI H. X. (1189) CAI Q. H. (0523) CAI R. X. (1163) CAI S. Q. (0720) CAI T. X. (0748) CAI W. …     

《化学研究与应用》在化学类科技期刊中的排名(据中国科技信息研究所《中国科技期刊引证报告》1998年数据)

期刊名称 被引频次(名次 )影响因子(名次 )即年指标(名次 )基金论文比例(% ) (名次 )被引半衰期(年 ) (名次 )分析试验室 936 (3) 1.0 85(1) 0 .134(3) 2 4 .2 (2 4 ) 3.8(16 )分析化学 2 388(1) 1.0 0 3(2 ) 0 .171(1) 45.2 (15) 4.9(6 )色谱 4 90 (6 ) 0 .6 92 (3) 0 .0 4 2 (18) 36 .9(2 0 ) 3.1(2 1)分析测试学报 344(13) 0 .597(4 ) 0 .12 2 (5) 39.1(19) 3.0 (2 2 )环境化学 4 33(8) 0 .582 (5) 0 .114(7) 6 1.0 (10 ) 5.3(5)分析科学学报 12 7(18) 0 .4 73(6 ) 0 .0 36 (2 1) 0 (2 5) 2 .6 (2 3)高分子学报 36 1(11) 0 .4 4 1(7) 0 .…     

<燃料化学学报>在化学类科技期刊中的排名

(据中国科技信息研究所《中国科技期刊引证报告》1 998年数据 )期刊名称 被引频次(名次 )影响因子(名次 )即年指标(名次 )基金论文比例( % ) (名次 )被引半衰期(年 ) (名次 )分析试验室 936( 3) 1 .0 85( 1 ) 0 .1 34( 3) 2 4 .2 ( 2 4 ) 3.8( 1 6)分析化学 2 388( 1 ) 1 .0 0 3( 2 ) 0 .1 71 ( 1 ) 45.2 ( 1 5) 4.9( 6)色谱 490 ( 6) 0 .692 ( 3) 0 .0 4 2 ( 1 8) 36.9( 2 0 ) 3.1 ( 2 1 )分析测试学报 344( 1 3) 0 .597( 4 ) 0 .1 2 2 ( 5) 39.1 ( 1 9) 3.0 ( 2 2 )环境化学 433( 8) 0 .582 ( 5) 0 .1 1 4( 7) 61 .0 ( 1 0 ) 5.3( 5)分析…     

2002年第21卷(1～6期)作者索引

AAndrea Jeannette Lee 592BB.van de Graafl39BIAN Guo.Qing(卞国庆1 264BIAN Zhi.Guo(边治国)489BU Ping-Yu(卜平宇)13BU Xian.He(卜显和)277,60l,62ICCAI Jin.Wan(蔡金万)617CAI Jue.Xiao(蔡觉晓1 368CAI Yue.Peng(蔡跃鹏)378,683CAO Huan.Van(曹焕岩)241CAO Rong(曹荣)268,374,392CAO Zheng-Bai(曹正白)292,501CHAI Jian.Fang(柴建方)273CHEN Chang-Neng(陈昌能)1 6 1,206,256,643,64CHEN Chuang.Tian(陈创天)38CHEN Feng(陈锋)64,206,643CHEN Hong.Ji(陈宏基)260CHEN Jin.Xiang(陈金香)l 74CHE…     

CHINESE JOURNAL OF CHEMISTRY

CHEN,Guang-Ju(陈光巨).…….1CHEN,Guo.Min(陈国明)……。.85CHEN,Li-Tao(陈丽涛)……….10CHEN,Qi(陈齐)……………..73CHEN,Yun.Sheng(陈运生)……54DENG,Cong-Hao(~从豪)…….19 FENG,Da-Cheng(~大诚)…….19 FENG,Shen奸Y11(冯圣玉)…….19 FU,Xiao.Yuan(傅孝愿)……….10 GUO,Zhi-Zheng(郭志筝)……..54 HAN。Yu.Zhen(韩玉真)=..…….54 HE,Jun-Ling(何军林)…….….63 HU,Qing-Mei(胡青眉)………..63 HU.Sheng-Zhi(胡盛志)……….47 HUANG,You,Qing(黄幼青)…..47 JIANG,Qing(蒋青)……………l K…     

Synthesis and Magnetic Studies of Oxamido-Bridged Cu(Ⅱ)-Fe(Ⅱ) Heterobinuclear Complexes

~The~andmagneti~Of~~areatoPicthahasndchinndinndnd.bondinthewiin-wtofbinudearCU(n)-Fe(u)-,chewedwiththe~alleq-nettrioftwnew~-,[CU(oxa)Fe(L)21sa(Lbo1,1o-~(Phen)nd5-nithe1'1o-~(NQ-Phen)),whereOxaisN,N'-bis(2-amhathy).edfor.-Synboor(1)ToCh(oxae)2(94.2mp'o.4ed)theindri(5nd)wasbo-lyadtalaedboofso.Wio(111.2mp,o.4nuno)inmeto(1ond)ndaboofPhen(144-2mp,o.8mrnO)inrne~(1OrnL)underN2atrmpe.theedfor2hthegreddebm~thuSfo~wereforoff,washededtimeswithrne~anddiethyletheranddriedoverP2QUnderededpe.ha:C,…     

Alkylation of Phenol with Methanol over Basic X Zeolites

Alkylationofphenolprovidesmanyindustrialintermediatessuchasagrochemicalsandpolymers.Thealkylationofphenolwithmethanolproceedsviaoxygen(O)-alkylationproducinganisole(An)aswellasmethylanisoleisomers(InAn)andring(C)-alkylationproducingmainlycresols(m.p.o-Cr)aswellasxylenols(Xy).Vapor-phasealkylationofphenolwithmethanolhasbeenexaminedovervarioussolidcatalysts'-'.Thecatalyticpropertiesandtheproductselectivityarestfonglyaffectedbythestructureofcatalystinadditiontoacidic-basiccharacter.Strongacidc…     

Preparation and Thermal Decomposition of [Cr (salen) (H_2O)_2] Cl

Chromium(III)isanessentialtraceelement.Inanactiveform.chronlium(III)asacomponentofglucosetolerancefactor(GTF)canimproveinsulinbiologicalactivity.CrsupplementationinhumansandanimalsreducessymptomsofTypeIIdiabetesandhypoglycemia.Forabetterunderstandingofthenatureofbiologicallyactivechromium(ill)complex,manyGTFmodelcomplexeshavebeenstudiedpreviously'.Here,oneGTFmodelcomplexofN,N'-ethylenebis(salicylideneiminato)diaquochromium(ill)chloride,[Cr(salen)(H,O)=]CIwaspreparedandcharacterized.a…     

Coordination chemistry of a new imine-ether ligand,N,N′-bis(2-pyridylmethylene)-2,2′-(ethylenedioxy)bis(ethylamine): mono-helical and single-helical-strand coordination modes identified by X-ray crystallography

A new Schiff base ligand, N,N′-bis(2-pyridylmethylene)-2,2′-(ethylenedioxy)bis(ethylamine), L, and the complexes, [AgL](BF₄) (1), [Zn₂LCl₄] (2), [Hg₂LCl₄] (3), [Cd₂LI₄] (4), [Ni₂L₃](BF₄)₄ (5), and [M₂L₃](ClO₄)₄ with M=Co(II) (6) Fe(II) (7) and Zn(II) (8), have been synthesised and characterised crystallographically and spectroscopically. The silver(I) complex 1 consists of a mono-helical structure where one ligand molecule, coordinating in a tetradentate manner, wraps itself around the Ag(I) ion, giving rise to a distorted tetrahedral arrangement. Single-helical-strand binuclear complexes were obtained with zinc(II), mercury(II) and cadmium(II), 2, 3 and 4, respectively. Complexes 2 and 3 are isomorphous and both contain one ligand molecule coordinating to two metal atoms via the two pyridylimine N-atoms. The two remaining coordination sites on the metals are occupied by chlorine atoms. In the fivefold coordinate cadmium(II) complex, 4, the ligand coordinates in a bis-tridentate manner via the two pyridylimine units and the two oxygen atoms. The two remaining coordination sites on the metals are occupied by iodine atoms. It was possible to combine both coordination modes of the ligand, mono-helical and single-helical-strand, in the isomorphous binuclear octahedrally coordinated nickel(II), cobalt(II), iron(II) and zinc(II) complexes, 5–8, respectively. One ligand molecule is wrapped around each metal ion, which in turn are linked by a third ligand molecule, so forming mono-bridged species.     

Structure and C-C cross-coupling reactivity of iron(III) complexes of halogenated amine-bis(phenolate) ligands

The preparation of tetradentate amine-bis(phenol) proligands with dichloro and difluoro substituted phenol groups and their reaction with FeX₃ (X = Cl or Br) is described. The compounds, 2-pyridylamino-N,N-bis(2-methylene-4,6-dichlorophenol), H₂[L₁]; 2-pyridylamino-N,N-bis(2-methylene-4,6-difluorophenol), H₂[L₂]; dimethylaminoethylamino-N,N-bis(2-methylene-4,6-dichlorophenol), H₂[L₃]; 2-tetrahydrofurfuryl-N,N-bis(2-methylene-4,6-dichlorophenol), H₂[L₄]; and methoxyethylamino-N,N-bis(2-methylene-4,6-dichlorophenol), H₂[L₅] were prepared in aqueous medium and obtained as white powders in good to excellent yield. Ten new iron(III) halide complexes supported by these tetradentate ligands are reported. Representative single crystal X-ray diffraction structures were obtained for H₂[L₁] and a water adduct of the iron(III) complex, aquachloro{2-pyridylamino-N,N-bis(2-methylene-4,6-dichlorophenolato)}iron(III), 2·H₂O. The structure of the proligand H₂[L₁] shows intramolecular hydrogen bonding. In the solid-state structure, the iron complex exhibits intermolecular hydrogen bonding between the water ligand and the phenolate oxygen of a neighbouring complex. The anhydrous complexes were studied for catalytic activity towards C-C cross-coupling of Grignard reagent nucleophiles with alkyl halide electrophiles.     

Preparation of iron carbonyl complexes of germanium(II) and tin(II) each with a terminal fluorine atom

The reaction of β-diketiminate substituted germanium(II) and tin(II) fluorides (LGeF (1) and LSnF (2)) (L = CH{(CMe)₂(2,6-iPr₂C₆H₃N)₂}) with diiron nonacarbonyl, Fe₂(CO)₉ at room temperature, leads to the iron carbonyl complexes of germanium(II) LGeFFe(CO)₄ (3) and tin(II) LSnFFe(CO)₄ (4), respectively. Compounds 3 and 4 were characterized by elemental analysis, NMR spectroscopy, and mass spectrometry. Furthermore, both complexes (3 and 4) were investigated by X-ray structural analysis which shows that both compounds are monomeric in the solid state containing terminal fluorine atoms.     

Mononuclear and binuclear iron(III) complexes incorporating N4O3 coordinating heptadentate ligand: Synthesis,structure and magnetic properties

The N₄O₃ coordinating heptadentate ligand afforded the mononuclear [Fe^III(HL)][BPh₄] (1) and binuclear [Fe₂^IIIL(OAc)₂][BPh₄] (2) complexes. In complex 1, the ligand binds in a trianionic N₂O₃ fashion whereas in the case of 2 the ligand binds in the trianionic N₄O₃ form in which the iron ions are held together by μ-phenoxo and bis μ-acetato bridges. In 1, the Fe(III) center has a trigonal bipyramidal geometry (τ = 0.84) whereas in 2 both the Fe(III) centers have a distorted octahedral geometry. Complex 2 shows an intramolecular weak antiferromagnetic interaction. Gas phase geometry optimizations have been performed using density functional theory without any symmetry constraints. The gas phase optimized structures agree well with the X-ray structure.     

New multidentate heteroscorpionate ligands: N-Phenyl-2,2-bis(pyrazol-1-yl)thioacetamide and ethyl 2,2-bis(pyrazol-1-yl)dithioacetate as well as their derivatives

New multidentate heteroscorpionate ligands, N-phenyl-2,2-bis(3,5-dimethylpyrazol-1-yl)thioacetamide PhHNCSCH(3,5-Me₂Pz)₂ (1), N-phenyl-2,2-bis(3,4,5-trimethylpyrazol-1-yl)thioacetamide PhHNCSCH(3,4,5-Me₃Pz)₂ (2), and ethyl 2,2-bis(3,5-dimethylpyrazol-1-yl)dithioacetate EtSCSCH(3,5-Me₂Pz)₂ (8), have been synthesized and their coordination chemistry studied. These heteroscorpionate ligands can act as monodentate, bidentate, or tridentate ligands, depending on the coordinate properties of different metals. Reaction of W(CO)₆ with 1 or 2 under UV irradiation yields monosubstituted carbonyl tungsten complexes W(CO)₅L (L = 1 or 2), in which N-phenyl-2,2-bis(pyrazol-1-yl)thioacetamide acts as a monodentate ligand by the s-coordination to the tungsten atom. In addition, these monosubstituted tungsten complexes have also been obtained by heating ligand 1 or 2 with W(CO)₅THF in THF. While similar reaction of Fe(CO)₅ with 1, 2, or 8 under UV irradiation results in tricarbonyl iron complexes PhHNCSCH(3,5-Me₂Pz)₂Fe(CO)₃ (5), PhHNCSCH(3,4,5-Me₃Pz)₂Fe(CO)₃ (6), and EtSCSCH(3,5-Me₂Pz)₂Fe(CO)₃ (9), respectively, in which N-phenyl-2,2-bis(pyrazol-1-yl)thioacetamide or ethyl 2,2-bis(pyrazol-1-yl)dithioacetate acts as a bidentate ligand through one pyrazolyl nitrogen atom and the CS π-bond in an η²-C,S fashion side-on bonded to the iron atom to adopt a neutral bidentate κ²-(π,N) coordination mode. Treatment of the lithium salt of 1 with Co(ClO₄)₂ · 6H₂O gives complex [PhNCSCH(3,5-Me₂Pz)₂]₂Co(ClO₄) with the oxidation of cobalt(II) to cobalt(III), in which N-phenyl-2,2-bis(3,5-dimethylpyrazol-1-yl)thioacetamide acts as a tridentate monoanionic κ³-(N,N,S) chelating ligand by two pyrazolyl nitrogen atoms and the sulfur atom of the enolized thiolate anion.     

Endo and exo cyclometallated iron carbonyl complexes derived from N-(N′-methyl-2-pyrrolylmethylidene)-2-thienylmethylamine

The reaction of N-(N′-methyl-2-pyrrolylmethylidene)-2-thienylmethylamine (1) with Fe₂(CO)₉ in refluxing toluene gives endo cyclometallated iron carbonyl complexes 2 and 5, exo cyclometallated iron carbonyl complex 3, and unexpected iron carbonyl complex 4. Complexes 2, 3, and 5 are geometric isomers. Complex 5 differs from complex 2 in the switch of the original substituent from α to β position of the pyrrolyl ring, and the pyrrolyl ring bridges to the diiron centers in μ-(3,2-η¹:η²) coordination mode in stead of μ-(2,3-η¹:η²). In complex 4, the pyrrolyl moiety of the original ligand 1 has been displaced by a thienyl group, which comes from the same ligand. Single crystals of 2, 3, and 5 were subjected to the X-ray diffraction analysis. The major product 2 undergoes: (i) thermolysis to recover the original ligand 1; (ii) reduction to form a hydrogenation product, 6, of the original ligand; (iii) substitution to form a monophosphine-substituted complex 7; (iv) chemical as well as electrochemical oxidation to produce a carbonylation product, γ-butyrolactam 8.     

Synthesis and characterization of iron and cobalt dichloride bearing 2-quinoxalinyl-6-iminopyridines and their catalytic behavior toward ethylene reactivity

The 1-(6-(quinoxalin-2-yl)pyridin-2-yl)ethanone was synthesized in order to prepare a series of N-(1-(6-(quinoxalin-2-yl)pyridine-2-yl)ethylidene)benzenamines (L1-L7), which provided new alternative N^∧N^∧N tridentate ligands coordinating with iron(II) and cobalt(II) dichloride to form complexes of general formula LFeCl₂ (1-7) and LCoCl₂ (8-14). All organic compounds were fully characterized by NMR, IR spectroscopic and elemental analysis along with and magnetic susceptibilities and metal complexes were examined by IR spectroscopic and elemental analysis, while their molecular structures (L1, L4, 1, 4, 10, 13) were confirmed by single crystal X-ray diffraction analysis. Upon activation with methylaluminoxane (MAO), all iron complexes gave good catalytic activities for ethylene reactivity (oligomerization and polymerization), while their cobalt analogues showed moderate activities toward ethylene oligomerization with modified methylaluminoxane (MMAO). Various reaction parameters were investigated for better catalytic activities, the higher activities were observed at elevated ethylene pressure. The iron and cobalt complexes with para-methyl substituents of aryl group linked on imino group showed highest activity.     

Synthesis and structural characterization of two polymorphs of Fe(2,2′-bpy)(HPO4)(H2PO4)

Two polymorphs of an organic-inorganic hybrid compound, Fe(2,2′-bpy)(HPO₄)(H₂PO₄) (1 and 2) (2,2′-bpy=2,2′-bipyridine), have been synthesized by hydrothermal methods and structurally characterized by single-crystal X-ray diffraction, thermogravimetric analysis, and magnetic susceptibility. Crystal data are as follows: Polymorph 1, monoclinic, space group P2₁/n (No. 14), a=10.904(2) Å, b=6.423(1) Å, c=19.314(3) Å, β=101.161(3)°, and Z=4; Polymorph 2, monoclinic, space group P2₁/c (No. 14), a=11.014(1) Å, b=15.872(2) Å, c=8.444(1) Å, β=109.085(3)°, and Z=4. Polymorph 1 adopts a chain structure in which each iron atom is coordinated by two nitrogen atoms from 2,2′-bpy ligand and four phosphate oxygen atoms. These infinite chains are extended into a 3-D supramolecular array via π-π stacking interactions of the lateral 2,2′-bpy ligands. The structure of polymorph 2 consists of the same building units, namely FeO₄N₂ octahedron, HPO₄ and H₂PO₄ tetrahedra, and 2,2′-bpy ligand, which are linked through their vertices forming an undulated sheetlike structure with 4,12 network. Adjacent layers are extended into a 3-D array via π-π stacking interactions of the aromatic groups. Magnetic susceptibility measurement results confirm that the iron atoms in both compounds are present in the +3 oxidation state.     

Polymerization of acrylate monomers with MAO activated iron(II) and cobalt(II) complexes bearing tri- and tetradentate nitrogen ligands

Octahedral iron(II) and cobalt(II) based complexes, [N,N′-di(quinoline-2-methylene)-1,2-phenylenediimine]MCl₂, and [N,N′-di(quinoline-2-methylene)diiminocyclohexane]MCl₂ (M = Co and Fe), bearing tetradentate diimino nitrogen ligands were prepared and used in tert-butylacrylate (t-BA) polymerization after activation with methylaluminoxane (MAO). In general, polyacrylates with high molar mass and narrow molar mass distribution (MMD ≈ 2) were obtained. In order to understand the influence of the ligand on the polymerization process, polymerization behaviour of the hexacoordinated complexes was compared to pentacoordinated iron(II) and cobalt(II) complexes, 2,6-bis[1-(cyclohexylimido)ethyl]pyridine MCl₂ (M = Co and Fe), bearing tridentate diimine nitrogen ligands as well as to free iron(II) chloride. The ability of the MAO activated hexacoordinated complexes to polymerize methylacrylate (MA) and methyl methacrylate (MMA) was also considered, but reduced activities as well as lower molar mass polymers were obtained than in the experiments with t-BA.