趙明霞, 熊麗琴, 蔡永樂, 張華北, 齊傳民*
(1. 山西工程技術(shù)學(xué)院 采礦工程系,山西 陽(yáng)泉 045000; 2. 上海交通大學(xué) 生物醫(yī)學(xué)工程學(xué)院,上海 200025;3. 北京師范大學(xué) 化學(xué)學(xué)院,教育部放射性藥物重點(diǎn)實(shí)驗(yàn)室,北京 100875)
·快遞論文·
基于呋喃-3-酮配體的銅(II)配合物的合成及其晶體結(jié)構(gòu)
趙明霞1, 熊麗琴2, 蔡永樂1, 張華北3, 齊傳民3*
(1. 山西工程技術(shù)學(xué)院 采礦工程系,山西 陽(yáng)泉 045000; 2. 上海交通大學(xué) 生物醫(yī)學(xué)工程學(xué)院,上海 200025;3. 北京師范大學(xué) 化學(xué)學(xué)院,教育部放射性藥物重點(diǎn)實(shí)驗(yàn)室,北京 100875)
以4-甲酰基-2,2,5,5-四甲基四氫呋喃-3-酮和間甲基苯胺為原料,經(jīng)縮合反應(yīng)制得配體(Z)-4-[(間甲苯胺基)亞甲基]-2,2,5,5-四甲基二氫呋喃-3(2H)-酮(L);以Cu(CH3COO)2為銅源,L經(jīng)配位反應(yīng)合成了一個(gè)新型的銅(II)配合物[Cu(L)2]n(I),其結(jié)構(gòu)經(jīng)FT-IR, X-射線單晶衍射和元素分析表征。I屬單斜晶系,P2(1)/c空間群,晶胞參數(shù)a=11.361 3(19) ?,b=24.564(4) ?,c=12.026(2) ?,α=γ=90,β=110.452(3),V=3 144.6(9) ?3,Dc=1.226 g·cm-3,Z=4,R1=0.051 5,wR2=0.113 2。
呋喃-3-酮; 銅(II)配合物; 晶體結(jié)構(gòu); 弱相互作用; 合成
各種分子間相互作用力在超分子化學(xué)和晶體工程中有著重要作用[1-5]。由各種作用產(chǎn)生的結(jié)構(gòu)基元的知識(shí)可用于設(shè)計(jì)新型的具有預(yù)期物理和化學(xué)性質(zhì)的材料,在磁性、熒光、氣體吸附與分離等領(lǐng)域引起廣泛關(guān)注[6-9]。這些相互作用被用于控制固態(tài)中的分子組裝體的構(gòu)象和形態(tài)特點(diǎn)[10-14]。近年來(lái),這些研究延伸到非常規(guī)氫鍵,即H┈H作用距離非常短,典型的鍵長(zhǎng)范圍是1.7~2.4 ?[15-20]。包括X—Hδ+┈Hδ-—Y相互作用,如B—H┈H—N相互作用[15]和Ga—H┈H—N相互作用[17]; X—Hδ+┈Hδ+—Y相互作用,如C—H┈H—C相互作用[20]。
3(2H)-呋喃酮類衍生物是一類重要的雜環(huán)化合物,具有較高的藥理活性。如從植物Jatrolha gossypi Ifolia中提取的Jatrophones具有抗癌活性[21-22],從植物Geilera parviflora的樹葉中提取分離并己完成人工合成的抗腫瘤作用物Genparvarin[23-24],及一些生物合成中重要的前體Patulin[25-26]等,在這些分子中,呋喃酮為關(guān)鍵骨架。然而有關(guān)含3(2H)-呋喃酮配體的金屬配合物的報(bào)道很少[27-28]。
本文以4-甲酰基-2,2,5,5-四甲基四氫呋喃-3-酮和間甲基苯胺為原料,經(jīng)縮合反應(yīng)制得配體(Z)-4-[(間甲苯胺基)亞甲基]-2,2,5,5-四甲基二氫呋喃-3(2H)-酮(L, Scheme 1);以Cu(CH3COO)2為銅源,L經(jīng)配位反應(yīng)合成了一個(gè)新型的銅(II)配合物[Cu(L)2]n(I),其結(jié)構(gòu)經(jīng)FT-IR, X-射線單晶衍射和元素分析表征。
Scheme 1
1.1 儀器與試劑
RY-1型熔點(diǎn)儀(溫度未校正); Varian 500 型核磁共振儀(CDCl3為溶劑,TMS為內(nèi)標(biāo)); Nicolet-AVATAR 360 FT-IR 型紅外光譜儀(KBr壓片); Elementar vario EL 型元素分析儀; Bruker Smart 1000 CCD型X-射線單晶衍射儀。
所用試劑均為分析純。
1.2 合成
(1) L的合成[29]
將4-甲?;?2,2,5,5-四甲基四氫呋喃-3-酮0.171 g(1.0 mmol)和間甲基苯胺0.107 g(1.0 mmol)加至50 mL茄型瓶中,攪拌使其混勻,加熱30 min。冷卻至室溫,抽濾得固體物質(zhì),依次用1 mol·L-1鹽酸和蒸餾水洗滌得粗品,用乙醇和水重結(jié)晶得L, m.p.81~83 ℃;1H NMRδ: 1.39(s, 6H, CCH3), 1.49(s, 6H, CCH3), 2.38(s, 3H, ArCH3), 6.90(m, 3H, ArH), 7.18(d,J=12.3 Hz, 1H,CH), 7.25(t,J=7.6 Hz, 1H, ArH), 10.96(d,J=11.7 Hz, 1H, NH);13C NMRδ: 139.35, 137.52, 129.12, 124.16, 116.09, 112.63, 110.93, 80.76, 78.36, 31.77, 26.08, 21.00; FT-IRν: 3 431, 2 971, 2 924, 1 693, 1 669, 1 612, 1 579, 1 492, 1 459, 1 415, 1 356, 1 292, 1 270, 1 242, 1 164, 1 118, 1 037, 993, 969, 773 cm-1。
(2) I的合成
將Cu(CH3COO)20.018 1 g(0.1 mmol)的THF(4 mL)溶液滴至L 0.025 8 g(0.1 mmol)的THF(4 mL)溶液中,滴畢,加熱15 min;加入CH3CN 4 mL,回流反應(yīng)1.5 h。冷卻至室溫,反應(yīng)液過(guò)濾,濾液于室溫放置5 d后得紅色塊狀晶體I; FT-IRν: 2 972, 2 923, 2 859, 1 607, 1 516, 1 498, 1 482, 1 456, 1 429, 1 354, 1 305, 1 216, 1 186, 1 138, 1 125, 988 cm-1; Anal.calcd for C32H40N2O4Cu: C 66.01, H 6.92, N 4.87; found C 66.24, H 6.99, N 4.73。
1.3 晶體結(jié)構(gòu)測(cè)定
將I置單晶衍射儀上,用經(jīng)石墨單色化的Mo-Kα射線(λ=0.710 73 ?),于294(2) K以ω-2θ掃描方式收集衍射點(diǎn)15 662個(gè)(獨(dú)立衍射點(diǎn)5 538個(gè))。I的結(jié)構(gòu)由直接法解出(SHELXTL-97程序)[30],用全矩陣最小二乘法精修,氫原子位置用理論加氫法確定。
2.1 表征
L和I的IR譜圖分析表明: L在3 431 cm-1處的一個(gè)寬吸收帶為N—H伸縮振動(dòng)峰,I中此帶消失說(shuō)明配體中氮上脫氫。L在1 693 cm-1、 1 669 cm-1、 1 612 cm-1和1 579 cm-1處的強(qiáng)吸收帶為C=C—C=O的伸縮振動(dòng)峰。I的1 607 cm-1處的吸收峰是由氧和氮原子與CuII的配位所引起,并且顯示N—C—C—C—O六元螯合環(huán)的電子離域狀態(tài)。這種現(xiàn)象與X-射線分析的結(jié)果一致。
2.2 晶體結(jié)構(gòu)
I(CCDC: 602560)的晶體學(xué)數(shù)據(jù)見表1,部分鍵長(zhǎng)和鍵角數(shù)據(jù)見表2,氫鍵鍵長(zhǎng)和鍵角見表3。
表1 I的晶體學(xué)數(shù)據(jù)Table 1 Crystal data and refinement details of I
I的不對(duì)稱單元由一個(gè)CuII和兩個(gè)L配體分子組成。CuII離子與兩個(gè)配體L通過(guò)反式-N2O2單元連接形成了變形四面體的配位環(huán)境(圖1)。CuII與配位原子之間的距離分別為:
Cu1—O3: 1.900(3), Cu1—O1: 1.905(3), Cu1—N2: 1.960(3)以及Cu1—N1: 1.962(3) ?。這些值都在文獻(xiàn)報(bào)道的四-配位的含氧、氮配體的CuII化合物范圍內(nèi)[31]。六元鰲合環(huán)中,O3—Cu1—N2的鍵角為94.33(13), O1—Cu1—N1的鍵角為94.43(13)。呋喃環(huán)與甲基C19/C31/C32之間的二面角為89.84(3);與甲基C18/C29/C30之間的二面角為89.62(4)。苯環(huán)上的甲基顯示無(wú)序狀態(tài)。
表2 I的部分鍵長(zhǎng)和鍵角Table 2 Selected bond lengths and angles of I
圖1 I的晶體結(jié)構(gòu)圖Figure 1 The crystal structure of I表3 I的氫鍵鍵長(zhǎng)和鍵角*Table 3 Hydrogen bond lengths and bond angles of I
DHAD—H/?H┈A/?D…A/?D—H┈A/(°)C29H29AC21#10.9602.8343.684148C28H28BO1#20.9602.6743.619168C12H12BC5#10.9612.8223.611140
*Symmetry code:#1x, 3/2-y, -1/2+z;#21-x, 2-y, -z。
圖2 I的三維網(wǎng)絡(luò)結(jié)構(gòu)圖Figure 2 Three-dimensional framework stabilized by the weak interactions in I
呋喃氧原子與苯環(huán)甲基之間存在C—H┈O氫鍵(C28—H28B┈O1=3.619 ?),連接兩個(gè)分子形成了二聚體。此外,呋喃環(huán)上的甲基與苯環(huán)上的甲基之間存在弱的C—H…H—C作用(C12—H12A…H16C—C16,H12A…H16C=2.158 ?),以及弱的C—H…C作用(C29—H29A…C21=3.684 ?和C12—H12B…C5=3.611 ?),這些弱的氫鍵作用連接分子形成了三維超分子網(wǎng)絡(luò)結(jié)構(gòu)(圖2)。
以4-甲?;?2,2,5,5-四甲基四氫呋喃-3-酮和間甲基苯胺為原料,經(jīng)縮合反應(yīng)制得配體(Z)-4-[(間甲苯胺基)亞甲基]-2,2,5,5-四甲基二氫呋喃-3(2H)-酮(L);以Cu(CH3COO)2為銅源,L經(jīng)配位反應(yīng)合成了一個(gè)新型的銅(II)化合物[Cu(L)2]n(I), I中的CuII離子中心與兩個(gè)配體L中反式-N2O2單元的N和O配位,形成變形四面體幾何構(gòu)型。
[1] Dethlefs K M, Hobza P. Noncovalent interactions:A challenge for experiment and theory[J].Chem Rev,2000,100(1):143-168.
[2] Guru Row T N. Hydrogen and fluorine in crystal engineering:Systematics from crystallographic studies of hydrogen bonded tartrate-amine complexes and fluoro-substituted coumarins,styrylcoumarins and butadienes[J].Coord Chem Rev,1999,183(1):81-100.
[3] Lehn J M. Supramolecular chemistry[M].Weinheim:VCH,1995.
[4] Aakeroy C B. Crystal engineering: Strategies and architectures[J].Acta Crystallogr B,1997,B53:569-586.
[5] Nangia A. Supramolecular chemistry and crystal engineering[J].J Chem Sci,2010,122(3):295-310.
[6] Brown A J, Pinkowicz D, Dunbar K R,etal. A trigonalpyramidal Erbium(III) single-molecule magnet[J].Angew Chem Int Edit,2015,54(20):5864-5868.
[7] 徐衡,朱昌海,薛晨,等. 新型8-氨基喹啉鋅配合物的合成及其熒光性能[J].合成化學(xué),2015,23(7):619-622.
[8] 梁姍姍,張慧,郭京京,等. 雙聯(lián)咪唑和對(duì)苯二甲酸構(gòu)筑的二重穿插鋅(II)配位聚合物{[Zn(bbi)(tpa)n}的合成及其熒光性能[J].合成化學(xué),2016,24(5):384-388.
[9] Yang F, Liu Q K, Dong Y B,etal.p-Benzoquinone adsorption-separation,wensing and its photoinduced transformation within a robust Cd(II)-MOF in a SC-SC fashion[J].Chem Commun,2015,51:7443-7446.
[10] Weissbuch I, Popovitz-Biro R, Lahav M,etal. Understanding and control of nucleation,growth,habit,dissolution and structure of two- and three-dimensional crystals using tailor-made auxiliaries [J].Acta Crystallogr B,1995,B51:115-148.
[11] Kadirvelraj R, Umarji A M, Robinson W T,etal. Systematic crystallographic investigation of hydrogen-bonded networks involving monohydrogen tartrate-amine complexes:Potential materials for nonlinear optics[J].Chem Mater,1996,8(9):2313-2323.
[12] Fuji K, Furuta T, Otsubo T,etal. Hydrogen-bonded network with a unique structural unit having zeolite-like properties[J].Tetrahedron Lett,1999,40(15):3001-3004.
[13] Dai C, Nguyen P, Marder T B,etal. Control of single crystal structure and liquid crystal phase behaviour via arene-perfluoroarene interactions[J].Chem Commun,1999,24(24):2493-2494.
[14] Coates G W, Dunn A R, Henling L M,etal. Phenyl-perfluorophenyl stacking interactions:A new strategy for supermolecule construction[J].Angew Chem Int Ed Engl,1997,36(3):248-251.
[15] Richardson T B, Gala S D, Crabtree R H. Unconventional hydrogen bonds:Intermolecular B—H┈H—N interactions[J].J Am Chem Soc,1995,117(51):12875-12876.
[16] Georg S F, Laurent P, Aline M F,etal. The cluster dication [H6Ru4(C6H6)4]2+revisited:The first cluster complex containing an intact dihydrogen ligand?[J].J Organomet Chem,2000,609(1-2):196-203.
[17] Campbell J P, Hwang J W, Young V G,etal. Crystal engineering using the unconventional hydrogen bond:Synthesis,structure,and theoretical investigation of cyclotrigallazane [J].J Am Chem Soc,1998,120(3):521-531.
[18] Yilmaz V T, Degirmencioglu I, Andac O,etal. Synthesis,spectra and crystal structure of 2-({[3-(methyl{3-[(2-hydroxybenzylidene)amino]propyl} amino)propyl]imino}methyl)phenol copper(II) complex[J].J Mol Struct,2003,654(1-3):125-129.
[19] Nimz O, Gessler K, Usón I,etal. Inclusion complexes of V-amylose with undecanoic acid and dodecanol at atomic resolution:X-ray structures with cycloamylose containing 26 d-glucoses(cyclohexaicosaose) as host[J].Carbohy Res,2004,339(8):1427-1437.
[20] Wolstenholme D J, Cameron T S. Comparative study of weak interactions in molecular crystals:H—H bondsvshydrogen bonds[J].J Phys Chem A,2006,110(28):8970-8978.
[21] Kupchan S M, Sigel C W, Matz M J,etal. Tumor inhibitors. 111. Structure and stereochemistry of jatrophone,a novel macrocyclic diterpenoid tumor inhibitor[J].J Am Chem Soc,1976,98(8):2295-2300.
[22] Smithlll A B, Guaciaro M A, Schow S R,etal. A strategy for the total synthesis of jatrophone:Synthesis of normethyljatrophone[J].J Am Chem Soc,1981,103(1):219-222.
[23] Dreyer D L, Lee A. Extractives of Geijera parviflora[J].Phtochemistry,1972,11(2):763-767.
[24] Quesne P W L, Levery S B, Menachery M D,etal. Antitumor plants. Part 6. Novel modified germacranolides and other constituents of Eremanthus elaeagnus Schultz-bip (compositae)[J].ChemInform,1979,12(9):1572-1580.
[25] Goss R J M, Fuchser J, O′Hagan D. Biosynthesis of longianone from Xylaria longiana:A metabolite with a biosynthetic relationship to patulin[J].Cheminform,2000,31(20):2255-2256.
[26] Scott A I, Yalpani M. A mass-spectrometric study of biosynthesis:Conversion of deutero-m-cresol into patulin[J].Chem Commun,1967,1967(18):945-946.
[27] Marmion M E, Woulfe S R, Neumann W L,etal. Preparation and characterization of technetium complexes with Schiff base and phosphine coordination. 1. complexes of technetium-99g and -99m with substituted acacen and trialkyl phosphines (where acacen=N,N-ethylenebis[acetylacetone iminato])[J].Nucl Med Biol,1999,26(7):755-770.
[28] Crankshaw C L, Marmion M, Luker G D,etal. Novel technetium (III)-Q complexes for functional imaging of multidrug resistance(MDR1) P-glycoprotein[J].J Nucl Med,1998,39(1):77-86.
[29] 于振華,尹承烈. 4-甲酰基-2,2,5,5-四甲基四氫呋喃-3-酮與胺的縮合產(chǎn)物及其性質(zhì)[J].高等學(xué)?;瘜W(xué)學(xué)報(bào),1982,3(2):210-216.
[30] Sheldrick G M. SHELXS-97 and SHELEXL-97, Program for the solution and refinement of crystal structures[K].Germany:University of G?ttingen,1997.
[31] 楊艷,巴召靜,龔俐,等. 新型銅配合物{[Cu4(N3)6(mpm)2]n}的合成及其晶體結(jié)構(gòu)[J].合成化學(xué),2015,23(9):806-810.
Synthesis and Crystal Structure of Cu(II) Complex Containing Furan-3-one Ligand
ZHAO Ming-xia1, XIONG Li-qin2, CAI Yong-le1,ZHANG Hua-bei3, QI Chuan-min3*
(1. Department of Mining Engineering, Shanxi Institute of Technology, Yangquan 045000, China;2. Department of Nuclear Medicine, Shanghai Jiao Tong University, Shanghai 200025, China; 3. Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China)
(Z)-4-((m-toluidino)methylene)-2,2,5,5-tetramethyl-dihydrofuran-3(2H)-one(L) was prepared from 2,2,5,5-tetramethyl-4-oxo-tetrahydrofuran-3-carbaldehyde andm-toluidine by condensation reaction. A novel 3D supramolecular architecture [Cu(L)2]n(I) was obtained through self-assembly of Cu(CH3COO)2with L. The structure was characterized by FT-IR, single-crystal X-ray diffraction and elemental analysis. I belongs to monoclinic system, space groupP2(1)/cwitha=11.3613(19) ?,b=24.564(4) ?,c=12.026(2) ?,α=γ=90,β=110.452(3),V=3 144.6(9) ?3,Dc=1.226 g·cm-3,Z=4,R1=0.051 5,wR2=0.113 2.
furan-3-one; Cu(II) complex; crystal structure; weak interaction; synthesis
2016-11-28;
2017-04-14
國(guó)家自然科學(xué)基金資助項(xiàng)目(230100075); 國(guó)家科技支撐資助項(xiàng)目(2014BAA03B03); 山西工程技術(shù)學(xué)院引進(jìn)研究生啟動(dòng)基金資助項(xiàng)目(201605002)
趙明霞(1980-),女,漢族,河北行唐人,博士研究生,主要從事金屬配合物和藥物合成研究。
齊傳民,教授,博士生導(dǎo)師, E-mail: qicmin@sohu.com
O626.11
A
10.15952/j.cnki.cjsc.1005-1511.2017.06.16296