制备了铁氮杂环配合物[Fe(H2L)2]·(CH3COO)2·(OH) ·H2O(H2L=2,6-二(5-甲基-1H-吡唑-3-基)吡啶),通过元素分析、X射线粉末衍射和X射线单晶结构分析等技术手段表征了它的结构.将其用于液相环己烷的催化氧化,系统研究了H2O2用量、HNO3用量、水量、反应时间和温度等对中间活性物种环己基过氧化氢(C6H11OOH)的生成和分解的影响,探讨了反应机理.结果表明,H2O2是氧化环己烷为C6H11OOH的主要氧化剂;硝酸对此过程没有氧化作用,但能大幅度提高C6H11OOH分解成环己醇(酮)的分解速率.H2O会抑制中间物种C6H11OOH的生成和分解,而降低催化剂的比活性.在不同反应阶段,C6H11OOH和环己醇(酮)的生成速率不同.升温能促进C6H11OOH的分解速率,而有利于环己醇(酮)的生成.
参考文献
[1] | Ishii Y,Sakaguchi S,Iwahama T.Innovation of Hydrocarbon Oxidation with Molecular Oxygen and Related Reactions[J].Adv Synth Catal,2001,343(5):393-427. |
[2] | Eissen M,Metzger J,Schmidt E,et al.10 Years after Rio-Concepts on the Contribution of Chemistry to a Sustainable Development[J].Angew Chem Int Ed,2002,41(3):414-436. |
[3] | Eissen M,Metzger J,Schmidt E,et al.10 Jahre nach "Rio" Konzepte zum Beitrag der Chemie zu einer Nachhaltigen Entwicklung[J].Angew Chem Int Ed,2002,114(3):402-425. |
[4] | Mahmudov K T,Kopylovich M N,Guedes da Silva M F C,et al.New Copper(Ⅱ) Dimer with 3-(2-Hydroxy-4-nitrophenylhydrazo) pentane-2,4-dione and Its Catalytic Activity in Cyclohexane and Benzyl Alcohol Oxidations[J].J Mol Catal A:Chem,2010,318(1/2):44-50. |
[5] | Dolaz M,McKee V,Urus S,et al.Synthesis,Structural Characterization,Catalytic,Thermal and Electrochemical Investigations of Bidentate Schiff Base Ligand and Its Metal Complexes[J].Spectrochim Acta Part A,2010,76(2):174-181. |
[6] | GUO Cancheng,ZHANG Xiaobing,HOU Lianbo,et al.Stndy on the Mechanism of Cyclohexanone Formation in Cyclohexane Hydroxylation Catalyzed by Metalloporphyrins[J].Acta Chim Sin,1998,56(5):489-494 (in Chinese).郭灿城,张晓兵,侯连伯,等.金属卟啉催化环已烷轻基化反应中环己酮的形成机理研究[J].化学学报,1998,56(5):489-494. |
[7] | Niasari M S,Salimi Z,Bazarganipour M,et al.Synthesis,Characterization and Catalytic Oxidation of Cyclohexane Using a Novel Host(zeolite-Y)/guest(binuclear transition metal complexes) Nanocomposite Materials[J].Inorg Chim Acta,2009,362(10):3715-3724. |
[8] | ZHAO Ruihua,DONG Mei,QIN Zhangfeng,et al.Synthesis and Characterization of CoAPO-5 with Different Cobalt Contents and Their Catalytic Performance for Cyclohexane Oxidation[J].Acta Phys Chim Sin,2008,24(12):2304-2308(in Chinese).赵瑞花,董梅,秦张峰,等.不同钴含量CoAPO-5分子筛的合成、表征及其催化环己烷氧化性能[J].物理化学学报,2008,24(12):2304-2308. |
[9] | Aboelfetoh E F,Fechtelkord M,Pietschnig R.Structure and Catalytic Properties of MgO-supported Vanadium Oxide in the Selective Oxidation of Cyclohexane[J].J Mol Catal A:Chem,2010,318(1/2):51-59. |
[10] | Zhou L P,Xu J,Miao H,et al.Catalytic Oxidation of Cyclohexane to Cyclohexanol and Cyclohexanone over Co3O4 Nanocrystals with Molecular Oxygen[J].Appl Catal A:General,2005,292:223-228. |
[11] | Xing N,Shan H,Zhao H Y,et al.Application in the Cyclohexane Oxidation of a Scorpionate Oxovanadium(Ⅳ) Complex:Synthesis,Structure,and Properties of VO(C5 H7O2) (BC9H7N6I3)[J].J Coord Chem,2012,65(5):898-910. |
[12] | Ren D X,Xing N,Slan H,et al.Novel Vanadium(Ⅲ) Complexes with Rigid Phenylpolycarboxylate Ligands:Synthesis,Structures and Application in C-H bond Activation[J].Dalton Trans,2013,42(15):5379-5389. |
[13] | WAN Lijuan,XING Na,WAN Hying,et al.Synthesis,Structure and Properties of the Cadmium Complex Using Bisphenyl-pyrazolyl-pyridine Derivative and Oxalate as Mixed Ligand[J].Chinese J Appl Chem,2012,29 (11):1266-1271 (in Chinese).万丽娟,邢娜,万丽英,等.Cd(Ⅱ)双苯吡唑基吡啶-草酸混配合物的合成、结构与性质[J].应用化学,2012,29(11):1266-1271. |
[14] | Wan L J,Zhang C S,Xing Y H,et al.Neutral Mononuclear,Dinuclear,Tetranuclear d7/d10 Metal Complexes Containing Bis-Pyrazole/Pyridine Ligands Supported by 2,6-Bis (3-pyrazolyl) Pyridine:Synthesis,Structure,Spectra,and Catalytic Activity[J].Inorg Chem,2012,51(12):6517-6528. |
[15] | Xing N,Shan H,Tian X,et al.Two New Scorpionate Oxomolybdenum (Ⅵ) poly-(pyrazolyl) borate Complexes:Synthesis,Structure,and Catalytic Performance in the Oxidation of Cyclohexane[J].Dalton Trans,2013,42(2):359-363. |
[16] | XING Na,SHAN Hui,SONG Ge,et al.Syntheses,Structures and Properties of Two Half-sandwich Cobalt Carboxylate Complexes with Tris(pyrazolyl) borate Ligand[J].Chem J Chinese Univ,2013,34(5):1041-1046(in Chinese).邢娜,单辉,宋鸽,等.两个半夹心型聚吡唑硼酸盐羧酸钴配合物的合成、结构及催化活性[J].高等学校化学学报,2013,34(5):1041-1046. |
[17] | Silva A R,Mour(a)o T,Rocha J.Oxidation of Cyclohexane by Transition-metal Complexes with Biomimetic Ligands[J].CatalToday,2013,203:81-86. |
[18] | Akashi T,Nakazawa J,Hikichi S.Iron Complex Immobilized Catalyst Based on β-ketiminate Ligand:Alkene Oxygenation Activity Depending on the Morphology of Silica Support and the Structures of Base Additives[J].J Mol Catal A:Chem,2013,371:42-47. |
[19] | Carvalho N M F,Horn Jr A,Antunes O A C.Cyclohexane Oxidation Catalyzed by Mononuclear Iron(Ⅲ) Complexes[J].Appl Catal A:General,2006,305 (2):140-145. |
[20] | Zheng A X,Wang H F,L C N,et al.Reactions of Cadmium (Ⅱ) Nitrate with 4-(Trimethylammonio) benzenethiolate in the Presence of N-Donor Ligands[J].Dalton Trans,2012,41(2):558-566. |
[21] | Craig G A,Costa J S,Roubeau O,et al.Local Coordination Geometry and Spin State in Novel FeⅡ Complexes with 2,6-Bis (pyrazol-3-yl)pyridine-Type Ligands as Controlled by Packing Forces:Structural Correlations[J].Chem Eur J,2012,18(37):11703-11715. |
[22] | Shiga T,Ito N,Hidaka A,et al.Series of Trinuclear Ni Ⅱ Ln Ⅱ Ni Ⅱ Complexes Derived from 2,6-Di (acetoacetyl) pyridine:Synthesis,Structure,and Magnetism[J].Inorg Chem,2007,46(9):3492-3501. |
[23] | Zhou Y B,Zhang X M,Chen W Z,et al.Synthesis,Structural Characterization,and Luminescence Properties of Multinuclear Silver Complexes of Pyrazole-functionalized NHC Ligands Containing Ag-Ag and Ag-π Interactions[J].J Organomet Chem,2008,693(2):205-215. |
[24] | Silva T F S,M.Silva F G,Mishra G S,et al.Synthesis and Structural Characterization of Iron Complexes with 2,2,2-tris (1-Pyrazolyl)ethanol Ligands:Application in the Peroxidative Oxidation of Cyclohexane Under Mild Conditions[J].J Organomet Chem,2011,696(6):1310-1318. |
[25] | Ruiter G,Costa J S,Lappalainen K,et al.The System Iron (Ⅱ)/mpzbpy Mediates the H2O2 Oxidation of Cyclohexane and Cyclooctene and the Aerobic Oxidative Cleavage of Ascorbic Acid to Oxalate[J].Inorg Chem Commun,2008,11 (7):787-790. |
[26] | Pokutsa A,Kubaj Y,Zaborovskyi A,et al.The Effect of Oxalic Acid and Glyoxal on the VO (acac)2-catalyzed Cyclohexane Oxidation with H2O2[J].A Appl Catal A:General,2010,390(1/2):190-194. |
[27] | HE Dugui,JI Hongbing,LUO Sirui,et al.Reaction Mechanism of Liquid-Phase Oxidation of Cyclohexane Catalyzed by Bi-Modified Vanadium-Phosphorous Oxide Catalyst[J].Chinese J Catal,2006,27(4):365-368(in Chinese).何笃贵,纪红兵,罗思睿,等.铋改性的钒磷氧化物液相催化氧化环己烷的反应机理[J].催化学报,2006,27(4):365-368. |
[28] | Gruenwald K R,Kirillov A M,Haukka M,et al.Mono-,di-and Polynuclear Copper (Ⅱ) Compounds Derived from N-Butyldiethanolamine:Structural Features,Magnetism and Catalytic Activity for the Mild Peroxidative Oxidation of Cyclohexane[J].Dalton Trans,2009,10(12):2109-2120. |
[29] | LUO Yiming,XIAO Linxiang,CHEN Zhe,et al.Syntheses,Spectral Properties of Novel Pyridine-2,6-dicarboxylic Acid Derivatives and the Ir Tb(Ⅲ)Complexes[J].Chem Res Appl,2008,20(3):299-303(in Chinese).罗一鸣,肖林香,陈哲,等.新型吡啶衍生物及其Tb(Ⅲ)配合物的合成与光谱性质研究[J].化学研究与应用,2008,20(3):299-303. |
[30] | Zhou Y,Chen W,Wang D.Mononuclear,Dinuclear,Hexanuclear,and One-dimensional Polymeric Silver Complexes Having Ligand-supported and Unsupported Argentophilic Interactions Stabilized by Pincer-like 2,6-Bis (5-pyrazolyl)pyridine Ligands[J].Dalton Trans,2008,11 (11):1444-1453. |
[31] | LUO Yiming,CHEN Zhe,TANG Ruiren,et al.Study on Synthesis of 2,6-Bisbenzoylactyl Pyridine[J].Chem React Eng Technol,2006,22(6):549-553 (in Chinese).罗一鸣,陈哲,唐瑞仁,等.2,6-二苯甲酰乙酰基吡啶合成工艺的研究[J].化学反应工程与工艺,2006,22(6):549-553. |
[32] | Sheldrick G M.SHELX-97,Program for Crystal Structure Analysis[M].University of Gottingen:Gottingen,Germany,1997. |
[33] | Robeas T D,Tuna F,Malkin T L,et al.An Iron(Ⅱ) Complex Exhibiting Five Anhydrous Phases,Two of which Interconvert by Spin-crossover with Wide Hysteresis[J].Chem Sci,2012,3 (2):349-354. |
[34] | Fern ndez T L,Souza E T,Visentin L C,et al.A New Oxo-vanadium Complex Employing an Imidazole-rich Tripodal Ligand:A Bioinspired Bromide and Hydrocarbon Oxidation Catalyst[J].J Inorg Biochem,2009,103(4):474-479. |
[35] | Trofimenko S.Boron-pyrazole Chemistry:Ⅳ.Carbon-and Boron-substituted Poly[(1-pyrazolyl) borates][J].J Am Chem Soc,1967,89(24):6288-6294. |
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