侯红卫
从事新型功能配合物的研究,并探讨它们在光电磁材料、催化和药物等方面的应用
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- 姓名:侯红卫
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博士生导师
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学科领域:
无机化学
- 研究兴趣:从事新型功能配合物的研究,并探讨它们在光电磁材料、催化和药物等方面的应用
侯红卫,男,1967年出生于河南郑州,95年7月南京大学无机化学专业博士毕业并获得博士学位,1998年7月从新加坡回国受聘于郑州大学化学系,98年11月被评为教授,99年5月获得河南省优秀青年教师荣誉称号,99年10月被遴选为博士生导师,2002年获得河南省特聘教授,2002年享受政府特殊津贴,2004年获得河南省优秀留学回国人员先进个人荣誉称号。
现从事新型功能配合物的研究,并探讨它们在光电磁材料、催化和药物等方面的应用,近几年来发表的主要学术论文有100余篇,其中SCI论文76篇,这些论文发表在“J. Phys. Chem.”, “Marcomolecular”, “Chem. Mater.”, “Chem. Commun.”, “Inorg. Chem.”, “Dalton Trans.”, “Coord. Chem. Rev.”, “J. Mater. Chem.” , “Eur. J. Inorg. Chem.”等上面。论文被SCI引用的论文次数超过了600次,其中单篇被SCI引用次数超过50次的论文有5篇。已培养或正在培养博士生10名、硕士21名、博士后1名。
已经主持国家自然科学基金资助课题三项,主持教育部优秀青年教师资助计划、教育部高等学校骨干教师基金、留学归国基金资助课题各一项,以及河南省高等学校创新人才培养工程、河南省杰出青年基金等。另外,申报国家发明专利三项。
1995年研究课题《固相配位化学反应及原子簇合成》获得了国家教委科技进步一等奖(证书号: 95-028);2004年应邀在Nova Science Publishers, Inc.出版社的系列丛书“Progress in Organometallic Chemistry Research”中参编“Progress in Ferrocene Carboxylate Metal Complexes”部分。
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侯红卫, Hongwei Hou, * Linke Li, Yu Zhu, Yaoting Fan, and Yuqin Qiao
Inorganic Chemistry, Vol. 43, No.15, 2004,-0001,():
-1年11月30日
Treatment of p-ferrocenylbenzoate [p-HOOCH4C6Fc, Fc=(η5-C5H5)Fe(η5-C5H5)] with Mn(OAc)2·2H2O or Cd(OAc)2·2H2O afforded one-dimensional linear chain polymer {[Mn(OOCH4C6Fc)2(μ2-OH2)(H2O)2](H2O)}n (1), double-bridge polymer [Mn(μ2-OOCH4C6Fc)2(phen)]n (phen) phenanthroline) (2), and ladderlike framework {[Cd(μ2-OOCH4C6Fc)(η2-OOCH4C6Fc)(bbp)](CH3OH)}n (bbp=4,4'-trimethylene-dipyridine) (3). The solution-state cyclic voltammograms indicate that the half-wave potentials of the ferrocenyl moieties in these polymers are all shifted to positive potential compared to that of sodium p-ferrocenylbenzoate. Both 1 and 2 behave as 1D Heisenberg Mn(Ⅱ) chains with weak intrachain antiferromagnetic interactions between the local high-spin Mn(Ⅱ) ions, and the exchange coupling parameters J (-5.20 and -3.25cm-1 for 1 and 2, respectively) are larger than those of most of the reported di-Mn(Ⅱ) complexes that contain μ2-aqua and μ2-carboxylato units and one-dimensional Mn(Ⅱ) carboxylic polymers.
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侯红卫, Xiangru Meng, †, Yinglin Song, ‡, Hongwei Hou, *, Huayun Han, Bo Xiao, Yaoting Fan, and Yu Zhu†
Inorganic Chemistry, Vol. 43, No.11, 2004,-0001,():
-1年11月30日
Four novel cadmium-btx (btx=1,4-bis(triazol-1-ylmethyl)benzene) coordination polymers [Cd(btx)2(NO3)2]n (1), [Cd(btx)2Cl2]n (2), [Cd(btx)(SO4)(H2O)2]n (3), and [Cd(btx)(S2O7)(H2O)]n (4) have been prepared by hydrothermal reaction (140 or 180℃) and characterized. Both 1 and 2 have two-dimensional rhombohedral grid structures, 3 possesses a two-dimensional rectangular grid structure, and 4 displays a three-dimensional framework, which is formed by btx bridging parallel layers. To the author's best knowledge, polymer 4 is the first Cd(Ⅱ) polymer in which the Cd(Ⅱ) ion is eight-coordinated in a hexagonal bipyrimidal geometry. In addition, we studied the effects of temperature on the hydrothermal reaction system of btx and CdSO4 and found that different products can be obtained at different temperatures. Furthermore, polymer 3 possesses a very strong third-order NLO absorptive effect with an R2 value of 1.15×10-9m W-1. Polymers 2-4 display strong fluorescent emissions in the solid state at room temperature. The DTA and TGA results of the four polymers are in agreement with the crystal structures.
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侯红卫, Hongwei Hou, *, †, Yongli Wei, Yinglin Song, ‡, Yaoting Fan, † and Yu Zhu†
Inorganic Chemistry, Vol. 43, No.4, 2004,-0001,():
-1年11月30日
The ligand N,N'-bis(1,3,4-thiobiazolyl)-2,6-pyridyldicarboxamide (btapca) has been synthesized and its coordination properties toward La(Ⅲ) and Ce(Ⅲ) in the presence of air have been investigated. The complexes [Ln8(tbzcapc)12-(H2O)24]·6DMF (Ln=La, 1, Ce, 2; tbzcapc=6-[2-N-(1,3,4-thiabiazolyl)carboxamido]-2-pyridylcarboxylate) show octameric ellipsoid structures. We found the starting ligand btapca had been altered into tbzcapc during the formation process of [Ln8(tbzcapc)12(H2O)24]·6DMF. The NLO properties of complexes 1 and 2 were investigated via Z-scan techniques. It is interesting that the two isostructural complexes show completely different NLO properties. Complex 1 shows NLO refractive effects without absorption, while complex 2 possesses NLO absorptive behavior without refraction.
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侯红卫, Gang Li, Hongwei Hou, * Linke Li, Xiangru Meng, Yaoting Fan, and Yu Zhu
Inorganic Chemistry, Vol. 42, No.16, 2003,-0001,():
-1年11月30日
Treatment of two kinds of ferrocenyl-substituted carboxylate ligands (3-ferrocenyl-2-crotonic acid, HOOC-CH=(CH3)CFc (Fc=(η5-C5H5)Fe(η5-C5H4)) or O-ferrocecarbonyl benzoic acid, o-HOOCC6H4COFc with Pb(OAc)2·3H2O, Zn(OAc)2·2H2O, or Cd(OAc)2·2H2O) resulted in four novel ferrocene-containing coordination polymers {[Pb(μ2-η2-OOCCHd(CH3)CFc)2]·MeOH}n (1), {[Zn(o-OOCC6H4COFc)2(4,4'-bipy)(H2O)2]·2MeOH·2H2O}n (4,4'-bipy) 4,4'-bipyridine) (2), {[Cd(o-OOCC6H4COFc)2(bpe)(MeOH)2]·2H2O}n (bpe=1,2-bis(4-pyridyl)ethene) (3), and [Pb(o-OOCC6H4COFc)(η2-o-OOCC6H4COFc)(bpe)]n (4). Their crystal structures have been characterized by single X-ray determinations. In polymer 1, Pb(Ⅱ) ions are bridged by tridentate FcC(CH3)dCHCOO- anions, forming an infinite chain [Pb(μ2-η2-OOCdCH(CH3)CFc)2]n. In polymers 2-4, there are three kinds of components, metal ions, o-FcCOC6H4COO- units, and organic bridging ligands. The bipyridine-based ligands connect metal ions leading to a one-dimensional chain with o-FcCOC6H4COO-units acting as monodentate or chelate ligands in the side chain. Such coordination polymers containing ferrocenyl-substituted carboxylate and bipyridine-based ligands are very rare. The solution-state differential pulse voltammetries of polymers 1-4 were determined. The results indicate that the half-wave potential of the ferrocenyl moieties is influenced by the Pb(Ⅱ) ions in polymer 1 and strongly influenced by Zn(Ⅱ), Cd(Ⅱ), or Pb(Ⅱ) ions in polymers 2-4. The thermal properties of the four polymers were also investigated.
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侯红卫, Hongwei Hou, * Linke Li, Gang Li, Yaoting Fan, and Yu Zhu
Inorganic Chemistry, Vol. 42, No.11, 2003,-0001,():
-1年11月30日
Using FcCOONa (Fc=η5-C5H5)Fe(η5-C5H4)) as starting material, we obtained an unprecedented metal-organic coordination polymer containing ferrocenecarboxylate components {[Pb2(FcCOO)(η2-FcCOO)(μ2-η2-FcCOO)(μ3-η2-FcCOO)(CH3OH)]·1.5CH3OH·H2O}n (1), tetramer [Zn4(μ2-FcCOO)6(μ4-O)] (2), and coordination polymers [Pb-(FcCOO)(μ2-FcCOO)(bpe)]n (3) (bpe) 1,2-bis(4-pyridyl)ethene), {[Zn(FcCOO)2(bpt)]·2.5H2O}n (4) (bpt ) N,N'-bis(3-pyridylmethyl)thiourea), and [Zn(FcCOO)(η2-FcCOO)(bbp)]n (5) (bbp ) 4,4'-trimethylene-dipyridine). Compounds 1 and 2 are formed by ferrocenecarboxylate units coordinating with Pb(Ⅱ) or Zn(Ⅱ). In polymer 1, ferrocenecarboxylate units have four kinds of coordinate modes; just these novel coordinate modes lead to the unprecedented onedimensional polymer where two kinds of rhomboids are arranged alternatively along the chain. Compound 2 is a tetramer, in which a distinct connectivity of the six ferrocene units is established through the four Zn atoms. Compounds 3-5 are obtained by organic ligands bridging Pb(Ⅱ) or Zn(Ⅱ), leading to a new type of metal-organic coordination polymer.
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侯红卫, Hongwei Hou, *, †, Yinglin Song, ‡, Hong Xu, Yongli Wei, Yaoting Fan, Yu Zhu, Linke Li, † and Chenxia Du†
Macromolecules, Vol. 36, No.4, 2003,-0001,():
-1年11月30日
A new bidentate "building block", N,N'-bis(3-pyridylformyl)piperazine (bpfp), was synthesized.X-ray diffraction studies reveal that the piperazine ring in bpfp forms a chairlike structure conformation. bpfp self-assembled into two-dimensional layered rhombohedral grid polymers {[Mn(H2O)2-(SO4)(bpfp)](H2O)3(CH3OH)}n (1) and {[Zn(NCS)2(bpfp)2]·2H2O}n (2) with Mn(Ⅱ) and Zn(Ⅱ), a threedimensional polymer [Cd(N3)2(bpfp)]n (3) with Cd(Ⅱ), and a one-dimensional zigzag polymer [HgI2(bpfp)]n (4) with Hg(II). Each rhombohedral grid in polymer 1 is composed of four Mn, two bpfp, and two SO4 2-; the dimensions of the grid are 6.537×12.843 Å. In polymer 2, each rhombohedral grid consists of 60-membered rings Zn4(bpfp)4 showing the dimensions of 14.231×15.586 Å. Zn4(bpfp)4 grids are bridged by Zn ions and all pyridyl-N atoms of bpfp ligands into the 2-D network structure along a and c directions. Polymer 3 exhibits a 3-D layered structure with tetragonal prism channel viewing from a direction. The bpfp ligands occupy the four edges of tetragonal prism channel, which is cut off by layers consisting of rhombohedral grids Cd4(N3)4. Polymer 4 is quite different from polymers 1-3; it exhibits a 1-D zigzag framework extending along the c axis. Polymers 1-3 possess a very strong NLO absorption and selffocusing effect. Their third-order NLO absorptive coefficients R2 are 9.2×10-9, 6.9×10-9, and 7.1×10-9mW-1. The third-order NLO hyperpolarizabilities γ are 1.79×10-28, 9.10×10-29, and 9.66×10-29 esu, respectively. The γ values are comparable to those of the best NLO materials and coordination polymers. We found that the valence shell structures of central metal ions can influence the NLO properties of coordination polymers.
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侯红卫, Xiangru Meng, †, Yinglin Song, ‡, Hongwei Hou, *, Yaoting Fan, Gang Li, † and Yu Zhu†
Inorganic Chemistry, Vol. 42, No.4, 2003,-0001,():
-1年11月30日
Three novel coordination polymers [Pb(bbbm)2(NO3)2]n (bbbm=1,1'-(1,4-butanediyl)bis-1H-benzimidazole) 1, [Zn(bbbt)(NCS)2]n (bbbt=1,1'-(1,4-butanediyl)bis-1H-benzotriazole) 2, and [Zn(pbbt)(NCS)2]n (pbbt=1,1'-(1,3- propylene)bis-1H-benzotriazole) 3 were synthesized and structurally characterized. Polymer 1 exhibits a two-dimensional rhombohedral grid network structure, the dimensions of the grid are 14.274×14.274 Å, and the diagonal-to-diagonal distances are 24.809×14.125 Å. Polymer 2 possesses a concavo-convex chain structure different from those of the known one-dimensional polymers, which are linear chain, zigzag chain, helical chain, double-stranded chain, and ladder chain. Polymer 3 exhibits a one-dimensional zigzag chain structure, and these chains were packed as an...ABAB... layered structure. The third-order nonlinear optical (NLO) properties of polymers 1, 2, and 3 were determined with a 7-ns pulsed laser at 532nm. 1 shows strong third-order NLO absorptive and refractive properties, and its R2 and n2 values were calculated to be 5.8×10-9m W-1 and 4.67×10-18m2 W-1 in a 3.4×10-4 mol dm-3 DMF solution, respectively. Both 2 and 3 exhibit weaker NLO absorption and strong refractive properties, and their n2 values are 4.53×10-18m2 W-1 for 2 in a 5.2×10-4 mol dm-3 DMF solution and 3.02×10-18m2 W-1 for 3 in a 4.35×10-4mol dm-3 DMF solution. The χ(3) values of 1, 2, and 3 were calculated to be 1.67×10-11, 1.62×10-11, and 1.08×10-11 esu, respectively, and the values are larger than those of the reported coordination polymers. We deduce that the valence shell structures of metal ions may have some influence on the strength of NLO properties, and discuss the relationships between the crystal structures of coordination polymers and the observed NLO properties.
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侯红卫, Gang Li, †, Yinglin Song, ‡, Hongwei Hou, *, Linke Li, Yaoting Fan, Yu Zhu, Xiangru Meng, † and Liwei Mi†
Inorganic Chemistry, Vol. 42, No.3, 2003,-0001,():
-1年11月30日
Three novel ferrocenyl complexes [Zn(4-PFA)2(NO3)2](H2O) (1), [Hg2(OAc)4(4-BPFA)2](CH3OH) (2), and [Cd2(OAc)4-(4-BPFA)2] (3) (4-PFA=[(4-pyridylamino)carbonyl]ferrocene, 4-BPFA) 1,1'-bis[(4-pyridylamino)carbonyl]ferrocene) were prepared, and complexes 1 and 2 were structurally characterized by means of X-ray single-crystal diffraction. In complex 1, the zinc(Ⅱ) atom is coordinated at a distorted tetrahedral environment by two nitrogen atoms from two 4-PFA moieties and two oxygen atoms from two nitrate anions; [Zn(4-PFA)2(NO3)2] units are linked by hydrogen bonds N-H…O and O-H…O forming one-dimensional chains. Complex 2 is a tetranuclear macrocycle compound consisting of two 4-BPFA moieties and two Hg atoms; [Hg2(OAc)4(4-BPFA)2] units form 1-D chains by hydrogen bonds N-H…O as complex 1. Some complexes with 1,1'-bisubstituted pyridine-containing ferrocene ligands have been described, but their crystal data are limited. Compound 2 is the first example of a macrocyclic pyridinecontainingferrocenyl complex. The third-order nonlinear optical (NLO) properties of 4-PFA, 4-BPFA, and complexes 1-3 were determined by Z-scan techniques. The results indicate that all the compounds exhibit strong self-focusing effect. The hyperpolarizability ç values are calculated to be in the range 1.51×10-28 to 3.12×10-28 esu. The γ values are nearly twice as large for complexes 1-3 as for their individual ligands, showing that the optical nonlinearity of the complexes is dominated by the ligands.
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侯红卫, Hongwei Hou, *, Gang Li, Linke Li, Yu Zhu, Xiangru Meng, and Yaoting Fan
Inorganic Chemistry, Vol. 42, No.2, 2003,-0001,():
-1年11月30日
Three novel ferrocenecarboxylato-bridged lanthanide dimers [Gd2(μ2-OOCFc)2(OOCFc)4(MeOH)2(H2O)2]·2MeOH·2H2O (1) (Fc=η5-C5H5)Fe(η5-C5H4)), [Nd2(μ2-OOCFc)2(OOCFc)4(H2O)4]·2MeOHâH2O (2), and [Y2(μ2-OOCFc)2-(OOCFc)4(H2O)4]·2MeOH (3) have been synthesized and characterized by single-crystal X-ray crystallography. In each complex, two Ln(Ⅲ) (Ln=Gd, Nd, or Y) ions are bridged by two ferrocenecarboxylate anions as asymmetrically bridging ligands, leading to dimeric cores, [Ln2(μ2-OOCFc)2]; each Ln(Ⅲ) ion has an irregular polyhedral coordination environment with nine coordinated oxygen atoms derived from the ferrocenecarboxylate ligands and coordinated solvent molecules. In the solid-state structure of compound 1, [Gd2(μ2-OOCFc)2(OOCFc)4(MeOH)2(H2O)2] groups are joined together by hydrogen bonds forming a two-dimensional network. Both compounds 2 and 3 show onedimensional chain structures by hydrogen bonding; they are different from 1. Magnetic measurements show unexpected ferromagnetic coupling between the gadolinium(Ⅲ) ions; the best fittings to the experimental magnetic susceptibilities gave J=0.006cm-1 and g=2.0 for 1. The magnetic behavior for 2 was also studied in the temperature range of 1.8-300K.
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侯红卫, Hongwei Hou, *, †, Xiangru Meng, Yinglin Song, ‡, Yaoting Fan, Yu Zhu, Huijie Lu, Chenxia Du, † and Weihua Shao†
Inorganic Chemistry, Vol. 41, No.15, 2002,-0001,():
-1年11月30日
In this paper, treatment of 1,1'-(1,4-butanediyl) bis-1H-benzotriazole (bbbt) and KSCN with Co(Ⅱ), Mn(Ⅱ), or Cd(Ⅱ) afforded three two-dimensional rhombohedral grid coordination polymers [M(bbbt)2(NCS)2]n (M ) Co, 1; Mn, 2; Cd, 3). The two-dimensional rhombohedral grids are parallel to the crystallographic ac plane. The rhombohedral grid consists of 44-membered rings of M4(bbbt)4, and gives the dimensions of 12.913×10.764 Å for polymer 1, 13.106×10.797 Å for polymer 2, and 13.256×10.870 Å for polymer 3. The three polymers' third-order nonlinear optical (NLO) properties were determined by Z-scan technique in DMF solution. The results show that all three polymers show very large NLO absorption and strong NLO refraction properties. The third-order NLO absorptive coefficients R2 are 5.4×10-9m W-1 for polymer 1, 5.2×10-9m W-1 for polymer 2, and 5.0×10-9m W-1 for polymer 3. The R2 values are larger than those of all the reported cluster compounds. The NLO refractive index values n2 of the three polymers are 5.73×10-19, 3.55×10-19, and 3.07×10-19 m2 W-1, respectively. Their hyperpolarizability γ values are calculated to be 2.40×10-30 esu for polymer 1, 1.52×10-30 esu for polymer 2, and 1.50×10-30 esu for polymer 3. The γ values are comparable to those of clusters and better than those of organometallic compounds, semiconductors, and fullerene.
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