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Synthesis and Crystal Structure of a Spiral-chain Manganese(Ⅲ) Complex Containing Azide Bridge,[Mn(bzan)N_3]_n

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Chinese Journal of Structural Chemistry 2002年第4期21卷 352-354页

作者： FENG Yun-Long (Institute of Physical Chemistry, zhejiang normal university, jinhua 321004, china) Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004

The title complex, C22H22MnN5O2, crystallizes in orthorhombic system, space group P212121 with a = 6.887(1), b = 11.718(2), c = 25.721(5) ? V = 2075.7(7) 3, Z = 4, Mr = 443.39, F(000) = 920, Dc = 1.419 g/cm3 and m = 0.665mm-1 (MoKa). The structure was refined to R = 0.0593 and wR = 0.1427 for 3576 observed reflections with I ≥ 2s(I). The Mn(Ⅲ) atom is coordinated to one bzan2- [bzan2- = N, N-ethylenebis(benzoylacetoneiminato)] ligand binding in the equatorial mode and two N3- ions in the axial positions. The azide acts as a trans--(1, 3) bridge, resulting in an infinite helical chain propagating along the b axis.

关键词： benzoylacetone Schiff base manganese complex crystal structure

Bloch constant of holomorphic mappings on the unit polydisk of C^n

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Science china mathematics 2008年第4期51卷 652-659页

作者： WANG JianFei~(1+) LIU TaiShun~2 1 College of mathematics and Physics Information Engineering zhejiang normal university jinhua 321004,china 2 department of mathematics Huzhou Teachers College Huzhou 313000 china College of mathematics and Physics Information Engineering Zhejiang Normal University Jinhua China department of mathematics Huzhou Teachers College Huzhou China

In this paper,we give a definition of Bloch mappings defined in the unit polydisk D^n, which generalizes the concept of Bloch functions defined in the unit disk *** is known that Bloch theorem fails unless we have some restrictive assumption on holomorphic mappings in several complex *** shall establish the corresponding distortion theorems for subfamiliesβ(K)andβ_(loc)(K) of Bloch mappings defined in the polydisk D^n,which extend the distortion theorems of Liu and Minda to higher *** an application,we obtain lower and upper bounds of Bloch constants for various subfamilies of Bloeh mappings defined in D^*** particular,our results reduce to the classical results of Ahlfors and Landau when n=1.

关键词： Bloch constant Bloch mapping univalent ball critical point Julia lemma locally biholomorphic mapping Landau constant

SCHWARZ-PICK ESTIMATES FOR BOUNDED HOLOMORPHIC FUNCTIONS ON CLASSICAL DOMAINS

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Acta Mathematica Scientia 2011年第4期31卷 1377-1382页

作者：刘洋陈志华 department of mathematics Zhejiang Normal University department of mathematics Tongji University

In this paper, Schwarz-Pick estimates for high order Fr′echet derivatives of bounded holomorphic functions on three kinds of classical domains are presented. We generalize the early work on Schwarz-Pick estimates of ... 详细信息

关键词： Schwarz-Pick estimate holomorphic functions classical domains

Generalized dromions of the (2+1)-dimensional nonlinear Schrdinger equations

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Communications in Nonlinear Science and Numerical Simulation 2001年第1期6卷 50-53页

作者： Jiefang ZHANG (Institute of Nonlinear Physics, zhejiang normal university, jinhua 321004, china) Institute of Nonlinear Physics Zhejiang Normal University Jinhua 321004 China

We derive the generalized dromions of the (2+1)-dimensional nonlinear Schrodinger equations besides the basic dromion solutions by suitably utilizing the arbitrary function in the bilinearized equations. The rich drom... 详细信息

关键词： dromion (2+1)-dimensional nonlinear Schrdinger equations

A Note on Schwarz-Pick Estimate

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Chinese Annals of mathematics,Series B 2010年第3期31卷 343-346页

作者： Yang LIU Zhihua CHEN department of mathematics Zhejiang Normal University Jinhua 321004 Zhejiang China. department of mathematics Tongji University Shanghai 200092 China

A Schwarz-Pick estimate of higher order derivative for holomorphic functions with positive real part on Bn is presented. This improves the earlier work on Schwarz-Pick estimate of higher order derivatives for holomorp... 详细信息

关键词： Schwarz-Pick estimate Holomorphic function Taylor expansion

Different-Periodic Travelling Wave Solutions for Nonlinear Equations

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Communications in Theoretical Physics 2004年第4期41卷 481-486页

作者： YE Li-Jun~1 LIN Ji~(1,2)1 department of Physics,zhejiang normal university,jinhua 321004,china2 Physics department,Shanghai Jiao Tong university,Shanghai 200030,china Physics department Shanghai Jiao Tong University Shanghai 200030 China

Using Jacobi elliptic function linear superposition approach for the(1+1)-dimensional Caudrey-Dodd-Gibbon-Sawada-Kotera(CDGSK)equation and the(2+1)-dimensional Nizhnik-Novikov-Veselov(NNV)equation,many new periodic travelling wave solutions with different periods and velocities are obtained based on the knownperiodic *** procedure is crucially dependent on a sequence of cyclic identities involving Jacobi ellipticfunctions sn(ξ,m),cn(ξ,m),and dn(ξ,m).

关键词： linear superposition nonlinear equation travelling wave solution

Synthesis and Structure of Bis(indene-1,2,3-trione 2-oximato)bis(aqua)Mn(Ⅱ): Mn(C_9H_4NO_3)_2(H_2O)_2

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Chinese Journal of Structural Chemistry 2003年第2期22卷 133-136页

作者： FENG Yun-Long① (Institute of Physical Chemistry, zhejiang normal university, jinhua 321004, china department of Chemistry, zhejiang normal university, jinhua 321004, china) Institute of Physical Chemistry Zhejiang Normal University Jinhua 321004

The title complex, bis(indene-1,2,3-trione 2-oximato)bis(aqua)Mn(Ⅱ), crystallizes in the monoclinic system, space group P21/c with a = 5.201(1), b = 16.547(3), c = 9.914(2) ? ?= 100.30(3), V = 839.4(3) 3, Dc = 1.738 g/cm3, F(000) = 446, C18H12N2O8Mn, Mr = 439.24, m(MoKa) = 0.842 mm-1, Z = 2, the final R = 0.0228 and wR = 0.0782 for 1762 observed reflections (I ≥ 2s(I)). The geometry around Mn(Ⅱ) is a distorted octahedral configuration with the basal plane consisting of two oximo-oxygen and two carbonyl-oxygen atoms from ligand indene-1,2,3-trione 2-oximato, while the axial coordination sites are occupied by two water- oxygen atoms. A plane network is formed by the intermolecular hydrogen bonds. The title complex is the first example of metal complex containing ligand indene-1,2,3-trione 2-oxime.

关键词： manganese(Ⅱ) complex ketoxime indene-1 2 3-trione 2-oxime crystal structure

N-Soliron-like Solution of Ito Equation

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Communications in Theoretical Physics 2004年第11期 641-644页

作者： ZHANG Yi~(1,2,) CHEN Deng-Yuan~2 ~1department of mathematics,zhejiang normal university,jinhua 321004,china ~2department of mathematics,Shanghai university,Shanghai 200436,china department of mathematics，zhejiang normal university，jinhua 321004，china department of mathematics，Shanghai university，Shanghai 200436，china department of mathematics，Shanghai university，Shanghai 200436，china

By using the extended Hirota’s method,the N-soliton-like solution of the Ito equation is ***-thermore,we also investSgate the soliton-like solution interaction and find singularity.

关键词： soliton-like solution Ito equation Hirota method

Effect of lead on survival, locomotion and sperm morphology of Asian earthworm, Pheretima guillelmi

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Journal of Environmental Sciences 2009年第5期21卷 691-695页

作者： ZHENG Rongquan, LI Canyang College of Chemistry and Life Science, zhejiang normal university, jinhua 321004, china. [a]College of Chemistry and Life Science Zhejiang Normal University Jinhua 321004 China

To provide basic toxicity data for formulating risk characterization benchmarks, the effects of lead on survival, locomotion, and sperm morphology were investigated in the Asian earthworm Pheretima guillelmi. The LC50 of P. guiUelmi for 7 and 14 d were 4285＋339 mg/kg and 3207＋248 mg/kg, which shows P. guillelmi can tolerate a higher concentration of lead nitrate. The average weight of the surviving earthworms decreased at concentration of 2800 mg Pb/kg soil, and the locomotor ability of earthworms exposed to a range of soil Pb concentrations showed a general decrease with increasing Pb concentrations. We also presented data depicting the sperm morphology of earthworms, which shows potential as a sensitive biomarker for measuring the effects of heavy metal on reproduction.

关键词： lead Pheretima guillelmi sperm morphology locomotion