将异烟酸酯类棒状小分子代替苯乙烯基吡啶作为质子受体；与对称型盘状质子供体间苯三酚形成了氢键复合超分子盘状液晶结构.通过红外光谱和变温红外光谱表征了氢键的存在及稳定性,并通过POM和DSC研究了复合体系的相转变行为,通过变温XRD详细表征了中间相结构.研究表明,酯键代替乙烯基链接键能够在不影响分子间氢键稳定性的情况下降低体系的有序度,从而得到有序度较低的盘状向列相中间相.
参考文献
| [1] | Chandrasekhar S,Sadashiva B K,Suresh K A.Liqiud crystals of disk-like molecules[J].Pramana-J.Phys.,1977,9(5):471-480. |
| [2] | Craats A M,Warman J M.The core-size effect on the mobility of charge in discotic liquid crystalline materials[J].Adv.Mater.,2001,13(2):130-135. |
| [3] | Schouten P G,Warman J M,Haas M P,et al.Charge migration in supramolecular stacks of peripherally substituted porphyrins[J].Nature,1991,353:736-737. |
| [4] | Markovitsi D,Marguet S,Bondkowski J,K et al.Triplet excitation transfer in triphenylene columnar phases[J].J.Phys.Chem.B,2001,105(7):1299-1306. |
| [5] | Bushby R J,Lozman O R.Discotic liquid crystals 25 years on[J].Curr.Opin.Colloid In.,2002,7(5-6): 343-354. |
| [6] | Li Q,Li L F.Photoconducting Discotic Liquid Crystals,In Thermotropic Liquid Crystals-Recent Advances[M].New York:Springer,2007. |
| [7] | Whitesides G M,Mathias J P,Seto C T.Molecular self-assembly and nanochemistry:a chemical strategy for the synthesis of nanostructures[J].Science,1991,254(5036):1312-1319. |
| [8] | Whitesides G M,Grzybowski B.Self-assembly at all scales[J].Science,2002,295(5564):2418-2421. |
| [9] | Antonietti M,F()rster S.Vesicles and liposomes:a self-assembly principle beyond lipids[J].Adv.Mater.,2003,15(16):1323-1333. |
| [10] | He W L,Pan G H,Yang Z,et al.Wide blue phase range in a hydrogen-bonded self-assembled complex of chiral fluoro-substituted benzoic acid and pyridine derivative[J].Adv.Mater.,2009,21(1):1-4. |
| [11] | 何万里,曹晖,张晓光,等.丙烯酸酯封端的取代氢键液晶的制备及性能研究[J].液晶与显示,2009,24(6):783-788. |
| [12] | Nayak S,Lyon L A.Soft nanotechnology with soft nanoparticles[J].Angew.Chem.Int.Ed.,2005,44(47):7686-7708. |
| [13] | Zhang Y,Guan Y,Yang S,et al.Fabrication of hollow capsules based on hydrogen bonding[J].Adv.Mater.,2003,15(10):832-835. |
| [14] | Binder W H,Bernstorff S,Kluger C,et al.Tunable materials from hydrogen-bonded pseudo block copolymers[J].Adv.Mater.,2005,17(23):2824-2828. |
| [15] | Osuji C,Chao C Y,Bita I,et al.Temperature-dependent photonic bandgap in a self-assembled hydrogen-bonded liquid-crystalline diblock copolymer[J].Adv.Funct.Mater.,2002,12(11-12):753-758. |
| [16] | 魏强,刘凯,苗志超,等.氢键复合物中间相行为的变温红外光谱研究[J].液晶与显示,2008,24(2):163-167. |
| [17] | Detert H,Lehmann M,Meier H.Star-shaped conjugated systems[J].Materials,2010,3(5):3218-3330. |
| [18] | Kato T,Yasuda T,Kamikawa Y,et al.Self-assembly of functional columnar liquid crystals[J].Chem.Commun.,2009,21(7):729-739. |
| [19] | Lattermann G,Schmidt S,Kleppinger R,et al.The first example of a tridentate azamacrocyclic metallomesogen[J].Adv.Mater.,1992,4(1):30-33. |
| [20] | Kraft A,Reichert A,Kleppinger R.Supramolecular liquid crystals with columnar mesophases through self-assembly of carboxylic acids around a tribasic core[J].Chem.Commun.,2000,(12):1015-1016. |
| [21] | Yasuda T,Kishimoto K,Kato T.Columnar liquid crystalline π-conjugated oligothiophenes[J].Chem.Commun.,2006,(32):3399-3401. |
| [22] | Kleppinger R,Lillya C P,Yang C.Discotic liquid crystals through molecular self-assembly[J].J.Am.Chem.Soc.,1997,119(18):4097-4102. |
| [23] | Liebmann A,Mertesdorf C,Plesnivy T,et al.Komplexierung von übergangsmetall-ionen mit substituierten azamakrocyclen:Induktion columnarer mesophasen durch molekulare erkennung[J].Angew.Chem.,1991,103(10):1358-1361. |
| [24] | Goldmann D,Janietz D,Festag R,et al.New disc-shaped triarylarnino-l,3,5-triazines with heteroaromatic central cores[J].Liq.Cryst.,1996,21(5):619-623. |
| [25] | Goldmann D,Dietel R,Janietz D,Set al.Sheet-shaped mesogens based on 1,3,5-triazines:variation of columnar mesophases through intermolecular hydrogen bonding[J].Liq.Cryst.,1998,24(3):407-411. |
| [26] | Wolff J J,Siegler F,Matschiner R,et al.Optimized twodimensional NLO chromophores with a threefold symmetry axis[J].Angew.Chem.Int.Ed.,2000,39(8):1436-1439. |
| [27] | Coco S,Cordovilla C,Domnguez C,et al.Columnar mesophases in hybrid organic-inorganic supramolecular aggregates:liquid crystals of Fe,Cr,Mo,and W at room temperature,built from triazines and metalloacid complexes[J].Chem.Mater.,2009,21(14):3282-3289. |
| [28] | Beltrn E,Serrano J L,Sierra T,et al.Tris(triazolyl)triazine via click-chemistry:a C3 electron-deficient core with liquid crystalline and luminescent properties[J].Org.Lett.,2010,12(7):1404-1407. |
| [29] | Price D J,Willis K,Richardson T,et al.Temporal stability of second-order optical non-linearities depending on non-linear optically active groups of polyesters[J].J.Mater.Chem.,1997,7(6):883-891. |
| [30] | Willis K,Price D J,Adams H,et al.Hydrogen-bonded liquid crystals from alkoxystilbazoles and 3-cyanophenols:structural control of mesomorphism:Molecular structure of the complex between 4-cyanophenol and 4-octyloxystilbazole[J].J.Mater.Chem.,1995,5(12):2195-2199. |
| [31] | Lee J H,Han M J,Hwang S H,et al.Self-assembled discotic liquid crystals formed by hydrogen bonding of alkoxystilbazoles[J].TetrahedronLett.,2005,46(42):7143-7146. |
| [32] | Yang X,Lu Q,Dong S,et al.Studies on structure changes of discotic liquid crystals of transition metal complexes[J].J.Phys.Chem.,1993,97(25):6726-6730. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%