ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
·
2020
·
IF 0.839
Gao-Feng Wang,Shu-Wen Sun,Hong Sun,Bing-Wei Chang,Jing Song,Xia Yang
Two coordination polymers (CPs), [Mn(bipmo)(pbtda)(H 2 O)] n ( 1 ), {[Cd(bipmo)(btda)]·2(H 2 O)]} n ( 2 ), (bipmo = bis(4-(1 H -imidazol-1-yl)phenyl)methanone, H 2 pbtda = 2-phenylbutanedioic acid, H 2 btda = butanedioic acid), were synthesized by solvothermal methods. The products have been characterized by elemental analyses, IR spectroscopy, and single-crystal X-ray diffraction. The topological structure of 1 is based on 2-nodal nets with the Schläfli symbol {6 3 }{6 9 ·8}, while that of 2 features a system with a sixfold penetration with the Schläfli symbol {6 6 }.
研究领域:
化学
·
材料科学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Zhencai Qu,Kun Wu,Weihua Meng,Bingfei Nan,Zhuorong Hu,Chang-an Xu,Zhiyou Tan,Qian Zhang,Huifa Meng,Jun Shi
Black phosphorus (BP) are shining for its promising properties. Due to the instability and agglomeration problem, the surface coordination strategy is a key point in practical applications. Herein, a ruthenium sulfonate ligand is synthesized to coordinate black phosphorus (BP) nanosheets. By virtue of Ru-P coordination, the lone pair electrons in BP are occupied, thus the RuL 3 @BP displays excellent stability in environment and different solvents. Subsequently, the resulting RuL 3 @BP is added into epoxy resin (EP) to fabricate EP nanocomposites. RuL 3 @BP can effectively enhance the dispersibility of BP in EP due to the surface coordination. When the RuL 3 @BP is added into epoxy in an amount of 3 wt%, the char yield is distinctly improved by 96.83%, which is ascribed to the cooperative catalytic charring effect between BP and RuL 3 . EP/RuL 3 @BP nanocomposites can easily pass the UL-94 V-0 rating, and its limiting oxygen index (LOI) value rises by 26.72%. The peak of heat release rate (PHRR) is decreased by 62.21% and the total heat release (THR) reduces by 35.22%, which is assigned to the restriction of heat transfer and inhibition of flammable gas by the dense char residues. The smoke production and diffusion of thermal pyrolysis gases are dramatically suppressed in the combustion. Meanwhile, owing to strong interfacial interactions between RuL 3 @BP and EP, EP nanocomposites filled with 3 wt% RuL 3 @BP exhibit a high thermal conductivity of 0.376 W m −1 K −1 , which is enhanced by 52.23% and 65.64% compared with that of EP/BP composite (0.247 W m −1 K −1 ) and pure EP (0.227 W m −1 K −1 ), respectively. This surface coordination strategy provides a novel approach for fabricating advanced-performance nanocomposites.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
TRANSITION METAL CHEMISTRY
·
2019
·Vol. 44
·期 8
·779-787
·
IF 1.016
Li Laiming,Li Youxin,Assefa Aschenaki,Bao James J.
Platinum was immobilized on magnetic silica gel by means of boronic, nitric, carboxylic or sulfuric acid ligands to give four heterogeneous Pt nano-catalysts, designated as Fe 3 O 4 @SiO 2 -BA@Pt, Fe 3 O 4 @SiO 2 -NA@Pt, Fe 3 O 4 @SiO 2 -CA@Pt and Fe 3 O 4 @SiO 2 -SA@Pt, respectively. Particles of these mono-dispersible Pt catalysts were 10–20 nm in size and could be separated for recycling by means of a magnet. Fe 3 O 4 @SiO 2 -BA@Pt (0.174 mmol/g Pt) showed the best catalytic activity and selectivity, which were better than Speier’s catalyst. Its turnover numbers were up to 1.7 × 10 6 and 1.1 × 10 6 for hydrosilylation of 1-hexene or styrene, respectively. This material could also catalyze the hydrosilylation of a broad range of alkenes and alkynes as substrates and methyldichlorosilane or triethoxysilane as silanes. Similar yields of 1-hexyl-methyldichlorosilane at the first and eighth runs (96.5% and 95.2%, respectively), together with a final Pt content of 0.171 mmol/g indicated the outstanding stability of Fe 3 O 4 @SiO 2 -BA@Pt under the catalytic reaction conditions.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
DALTON TRANSACTIONS
·
2017
·Vol. 46
·期 32
·10630-10634
·
IF 4.029
Mei-Yan Gao,Shumei Chen,Lan-Xia Hu,Lei Zhang,Jian Zhang
Four titanium-oxo-clusters with cyclohex-3-ene-1-carboxylate (Cec) ligands, Ti6(μ2-O)2(μ3-O)2(Cec)4(OiPr)12 (PTC-91; HOiPr = isopropanol), Ti6(μ3-O)6(Cec)6(OiPr)6 (PTC-92 and PTC-93) and H2[Ti18(μ2-O)11(μ3-O)14(Cec)20(OiPr)4] (PTC-94), have been solvothermally synthesized under different conditions, respectively. These clusters with the same Cec ligand show totally different structures, and they are stable in water and other common solvents. The Ti6 clusters with different conformations are presented in PTC-91, PTC-92 and PTC-93, while PTC-94 is an unusual Ti18 cluster. The photocatalytic studies reveal that PTC-91 and PTC-94 have good H2 evolution ability.
研究领域:
材料化学
·
光催化
✓ 已验证
DOI
高影响因子
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
·
2019
·Vol. 74
·期 3
·261-265
·
IF 0.961
Gao-Feng Wang,Shu-Wen Sun,Wei-Bing Wang,Hong Sun,Shao-Fei Song
Two coordination polymers, {[Co(bipmo)(tbip)]·3H 2 O} n ( 1 ) and {[Cd(bipmo)(tbip)]·3H 2 O} n ( 2 ) (bipmo=bis(4-(1 H -imidazol-1-yl)phenyl)methanone, H 2 tbip=5- tert -butylisophthalic acid), were synthesized by solvothermal methods and structurally characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction. The results from single-crystal X-ray diffraction data indicate that the solid state structures of 1 and 2 consist of metal-aromatic carboxylate layers, which are pillared by weak interactions to generate a three-dimensional network. The topological structures of 1 and 2 are uninodal nets based on 3-connected nodes with the Schläfli symbol of {6 3 }.
研究领域:
无机化学
·
材料科学
✓ 已验证
DOI
高影响因子
Nature Communications
·
2020
·Vol. 11
·期 1
·1-12
·
IF 12.121
Hu Yechen,Jiang Bo,Weng Yejing,Sui Zhigang,Zhao Baofeng,Chen Yuanbo,Liu Lukuan,Wu Qiong,Liang Zhen,Zhang Lihua,Zhang Yukui
Protein N-phosphorylation plays a critical role in central metabolism and two/multicomponent signaling of prokaryotes. However, the current enrichment methods for O-phosphopeptides are not preferred for N-phosphopeptides due to the intrinsic lability of P-N bond under acidic conditions. Therefore, the effective N-phosphoproteome analysis remains challenging. Herein, bis(zinc(II)-dipicolylamine)-functionalized sub-2 μm core-shell silica microspheres (SiO 2 @DpaZn) are tailored for rapid and effective N-phosphopeptides enrichment. Due to the coordination of phosphate groups to Zn(II), N-phosphopeptides can be effectively captured under neutral conditions. Moreover, the method is successfully applied to an E.coli and HeLa N-phosphoproteome study. These results further broaden the range of methods for the discovery of N-phosphoproteins with significant biological functions.
研究领域:
生物化学
·
蛋白质组学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2023
·
IF 3.8
Guang-Ming Liang,Zeng-Ni Xiang,Jie Yang,Zhong-Mei Xian,Guo-Long Song,Ling Wu,Ji-Lan Long,Mei-Yu Xu,Xiu-Jian Wang,Peng Xiong
The tricarboxylic ligand, 4′,4′,4′-[(trimethylamino)]-tris[(1,1′-biphenyl)-2-carboxylic acid] (H 3 TMCA), is designed and synthesized to self-assembly two novel cobalt coordination polymers, formulated as {[Co 2 (TMCA)(OH)(DMF)(H 2 O)]} n (1), {[Co 3 (TMCA) 2 ]} n (2). Interesting, due to the flexibility of the H 3 TMCA, the final frameworks of 1-2 can change depending on the reaction of temperature and solvents. Complex 1 is a (3, 6)-connected of type kgd two-dimensional (2D) network with a point (Schlafli) symbol of {4 3 } 2 {4 6 . 6 6 . 8 3 }. Complex 2 is a (4, 6)-connected 2-nodal three-dimensional (3D) net with point (Schlafli) symbol of {4 15 } 2 {4 2 . 8 4 } 3 . In addition, the electrocatalytic activity of these Co-CPs were studied in detail.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
Inorganic and Nano-Metal Chemistry
·
2021
·
IF 1.716
Weiqiang Xu,KaiKai Hu,Shouwen Jin,Yuting Zhang,Daqi Wang
Transition metal carboxylates with O- and N-donor ligands are interesting for their structural features. Seven novel isonicotinamide(inic)-based metal complexes of [Cd(inic)2(L1)2(H2O)2] · 2H2O (1) (L1 = 2-chloronicotinate), [Cd(inic)2(L2)2(H2O)2] (2) (L2 = 2,4-dichlorobenzoate), [Cu(inic)2(L3)2] (3) (L3 = 4-chlorophenoxyacetate), [Cu3(inic)6(L4)2(HL4)2(H2O)2] · 2H2O (4) (L4 = azelate), [Zn(inic)2(L1)2(H2O)2] · (inic) · H2O (5), [Zn(inic)(L5)(H2O)4] (6) (L5 = 3-nitrophthalate) and [Zn2(inic)2(L6)2] · 5H2O (7) (L6 = 1,4-cyclohexanedicarboxylate) have been obtained by the introduction of the carboxylates by the common solution method and are structurally featured by different techniques of EA, IR spectra, TG and SCXRD analysis. The X-ray studies told that these complexes display mononuclear to trinuclear structures with octahedral/square-pyramidal geometry around the Zn2+, trigonal bipyramidal/octahedral at the Cu2+ and octahedral for the Cd2+. The inic in 1–7 are coordinated only in monodentate fashion with its ring N, while 5 has the lattice inic. The carboxylates coordinated to the metal in monodentate, chelating bidentate and bridging bidentate fashions. The pair of complementary N-H···O H-bonds from the CONH2 of the inic were found in all compounds except 7. Except 1 and 2, all other compounds bear the CH-O contacts from the pyridine CH of the inic. The intricate intra- and intermolecular classical H-bonds, CH-N, CH-O, CH-Cl, CH2-O, O-N, O-O, Cl-O, Cl-Cl, CH-π, CH2-π, C-π, N-π, Cl-π and π-π associations are elucidated by the X-ray crystallographic studies, which push the discrete complexes into high-dimensional ordered supramolecular structures.
研究领域:
化学
·
材料科学
·
晶体学
✓ 已验证
DOI
高影响因子
SYNTHETIC METALS
·
2021
·
IF 3.266
Ruixue Wu,Caifeng Bi,Lulu Wang,Jinmiao Wang,Chuanbin Fan,Nana Li,Mei Wang,Feng Shao,Guobo Chen,Yuhua Fan
In this work, five novel Cd/Zn-based MOFs with different topological framework, namely {[Cd(bimb)(Hbipa)]·H 2 O} n (1), {[Cd 3 (dimb) 3 (bipa) 2 (H 2 O) 2 ]·2H 2 O} n (2) , [Cd(bimd)(Hbipa)(H 2 O)] n (3) , {[Zn(bipd)(Hbipa)]·H 2 O} n (4) and [Zn(bimb)(Hbipa)] n (5) had been synthesized and characterized. Worth noting, Complex 1 and 2 had effective separation behaviors towards MO and MBE dyes respectively, which could reach the adsorption equilibrium within a quite short time even if there existed another kind of dye in the system. Meanwhile, Complex 3 – 5 showed great performance in CR adsorption. Additionally, Complex 3 – 5 also showed excellent photocatalytic degradation capabilities toward MB and MV dyes under UV irradiation. According to the study, these five metal-organic frameworks can be used as a kind of functional materials in the adsorption and photocatalytic degradation of organic dyes in wastewater.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2022
·
IF 3.656
Xiao Chen,Yan Peng,Runli Gao,Hongmei Wang,Chengxin Pei
An isostructural series of rare earth complexes has been synthesized by using the dimethylarsinate ligand. All complexes have the formula [Ln(Me 2 AsO 2 ) 3 ][H 2 O] 8 (Ln = Sm( 1 ), Eu( 2 ), Gd( 3 ), Tb( 4 ), Dy( 5 ), Ho( 6 ), Er( 7 ), Tm( 8 ), Yb( 9 ), Y( 10 )). They are the first rare earth complexes ligated by organoarsinate. Crystallographic characterizations reveal that all the compounds feature 1D chain-like arrangements, in which two rare earth ions are bounded by three dimethylarsinate ligands (syn,syn, μ 2 - ƞ 1 : ƞ 1 ) and the rare six-coordinated rare earth ions display ideal octahedron coordination geometry. The solid state photoluminescent studies reveal that compounds 2 and 4 exhibit the characteristic emission band of the Eu III and Tb III ions respectively. Magnetic measurements indicate Gd( 3 ) shows magnetocaloric effect (MCE) with entropy change of 24.92 J kg –1 K –1 for ΔH = 0 – 7 T at 3 K. The Dy( 5 ) and Yb( 9 ) show field induced slow relaxation, which is rare for octahedron coordinate Ln III compounds.
研究领域:
材料科学
·
无机化学
✓ 已验证
DOI
高影响因子
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
·
2017
·Vol. 72
·期 4
·257-261
·
IF 0.631
Gao-Feng Wang,Xiao Zhang,Shu-Wen Sun,Hong Sun,Hui Li,Hui-Xuan Ma,Yu-Peng Tang,Xiao-Na Gao,Lei Yang
Two new copper(II) complexes, {[Cu(bipmo)(npa)]} n ( 1 ) and {[Cu(bipmo)(pa)]} n ( 2 ) (bipmo=bis(4-(1 H -imidazol-1-yl)phenyl)methanone), were synthesized by solvothermal methods and structurally characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction. The results from single-crystal X-ray diffraction data indicate that the solid state structures of 1 and 2 consist of neutral metal aromatic carboxylate layers, which are pillared by the weak interactions to generate 3D architectures. The topological structures of 1 and 2 are uninodal nets based on 4-connected nodes with the Schläfli symbol of (6 5 ·8).
研究领域:
化学
·
材料科学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Zhen-Yu Chen,Qin-Long Hong,Hai-Xia Zhang,Jian Zhang
By enhancing steric hindrance of substituents on the imidazole ring, the fan-shaped molecule of a tridentate boron imidazolate ligand (KBH(2-ipim)3, 2-ipim = 2-isopropylimidazolate) with racemic chirality was obtained. Then, seven novel boron imidazolate frameworks (BIFs) were prepared by mixing KBH(2-ipim)3 ligands with various derivatives of benzene carboxylic acid under solvothermal conditions. All of these seven materials contain a ladder-like zinc-boron-imidazolate chain as a basic building block, and the ligand BH(2-ipim)3– exists in the same handedness in one chain. The structural variations are associated with the position of substituents of the auxiliary ligand. Of particular interest is the spontaneous resolution of BH(2-ipim)3– ligands into two independent enantiomorphous homochiral structures, BIF-131-S and BIF-131-R, which contain both a chiral chain and an absolute helix embedded in the nets.
研究领域:
化学
·
材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）