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苏成勇, Cheng-Yong Su, †, ‡ Bei-Sheng Kang, ‡ Chen-Xia Du, † Qing-Chuan Yang, † and Thomas C. W. Mak*
Inorganic Chemistry, Vol. 39, No.21, 2000,-0001,():
-1年11月30日
The C3-symmetric tripodal ligand tris(2-benzimidazolylmethyl)amine (ntb) and its alkyl-substituted derivatives tris(N-R-benzimidazol-2-ylmethyl)amine (R ) methyl, Mentb; R ) ethyl, Etntb; R ) propyl, Prntb) react with various silver(I) salts to afford mononuclear [Ag(Prntb)(CF3SO3)]
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苏成勇, Yue-Peng Cai, a b Hua-Xin Zhang, a An-Wu Xu, a Cheng-Yong Su, *a Chun-Long Chen, a Han-Qin Liu, a Li Zhang a and Bei-Sheng Kang *a b
J. Chem. Soc., Dalton Trans., 2001, 2429-2434,-0001,():
-1年11月30日
The flexible multidentate ligand O,O -bis(8-quinolyl)-1,8-dioxaoctane (ODOQ) reacted with AgX (X = ClO4, BF4, CF3SO3, or CF3CO2) to give four new complexes Ag(ODOQ)]nXn: X=ClO4 1; X=BF4 2; X=CF3SO3 3, and [Ag(ODOQ)(CF3CO2)]n 4. All four complexes have been characterized by elemental analyses, IR and 1H NMR spectroscopy. Single crystal X-ray analyses showed that they have similar 1-D extended architectures with each ligand in "∼"shape, while the chains are alternately and parallelly arranged with the silveratoms as the backbone to form double helical mesomeric strands. The structures are controlled more by the spacer (CH2)6 than by the anions: the versatile coordination geometry of the silver atom is trigonally bonded but changes to distorted tetrahedral or trigonal bipyrimidal via weak AgO interactions. In addition, face-to-face π (in 1-4) and edge-to-face C-Hπ (in 3) interactions as well as hydrogen bonds C-H O and C-H F between adjacent strands assemble the cations in 1-3 or neutral molecules in 4 into an extended network.
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苏成勇, Xiao-Ping Yang, a b Cheng-Yong Su, *a Bei-Sheng Kang, *a Xiao-Long Feng, a Wang-Leng Xiao c and Han-Qin Liu a
J. Chem. Soc., Dalton Trans., 2000, 3253-3260,-0001,():
-1年11月30日
A new unsymmetric tripodal ligand bis(2-benzimidazolylmethyl)(2-pyridylmethyl)amine (L) bearing two kinds of chromophores benzimidazole and pyridine has been synthesized, and two series of lanthanidecomplexes [LnL(NO3)3] C2H5OH (Ln = La, Sm, Eu, Gd, Tb or Tm) and [LnLCl3(H2O)] C2H5OH (Ln = La, Sm, Eu, Tb or Ho) have been characterized by elemental analyses, FAB mass spectra, 1H NMR, conductivity measurements, and IR spectra. The crystal and molecular structures of the three complexes [SmL(NO3)3] C2H5OH 1, [GdL(NO3)3] C2H5OH 2, and [SmLCl3(H2O)] C2H5OH 3 have been determined by X-ray diffraction analysis. 1 and 2 are isomorphous with the central metal ion co-ordinated by the four nitrogen atoms of the ligand and six oxygen atoms of three chelating nitrate groups. In complex 3, besides the four nitrogen atoms of the ligand and three chlorine atoms, there is one H2O molecule co-ordinated. Conductivity studies on the [LnL(NO3)3] C2H5OH complexes in methanol showed that two of the nitrate anions dissociate to give 2 : 1 electrolytes. Comparison of the emission lifetimes of the Eu3 and Tb3 complexes in CH3OH and CD3OD gives the average value for q, the number of co-ordinated methanol molecules, of 3.4, suggesting the formation of species [LnL(NO3)(CH3OH)3][NO3]2. The emission quantum yields of the nitrate-coordinated series are substantially higher than those of the chloride series, as shown by luminescence studies in MeCN.
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苏成勇, Xing-Qiang Lu, † Ji-Jun Jiang, † Hans-Conrad zur Loye, *, ‡ Bei-Sheng Kang, † and Cheng-Yong Su*, †
Inorganic Chemistry, Vol. 44, No.6, 2005,-0001,():
-1年11月30日
Three new complexes [Cd(4-pmpmd)1.5(NO3)2]
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苏成勇, Cheng-Yong Su, *a Sen Liao, a b Hai-Liang Zhu, a Bei-Sheng Kang, a Xiao-Ming Chena and Han-Qin Liu a
J. Chem. Soc., Dalton Trans., 2000, 1985-1993,-0001,():
-1年11月30日
The flexible linear multidentate ligands 1,5-bis(8-quinolylsulfanyl)-3-oxapentane (OESQ) and 1,8-bis(8-quinolylsulfanyl)- 3,6-dioxaoctane (ODSQ) reacted with silverperchlorate affording the simple mononuclear complexes [Ag(OESQ)]ClO4 1 and [Ag(ODSQ)]ClO4 2, respectively. However, with silver nitrate, novel metallosupramolecular complexes [Ag4(ODSQ)2(η1-NO3)2(η2-NO3)2] 3 and [Ag4(OESQ)(ODSQ)(η1-NO3)2(η2-NO3)2] H2O 4 were obtained, in which the co-ordination motifs [Ag(OESQ)] and [Ag(ODSQ)] are spontaneously self-assembled by sulfurbridged silver ions into tetrametallotricyclic molecules containing the same or mixed building blocks. All four complexes have been characterized by elemental analyses, IR and 1H NMR spectroscopy, and single crystal X-ray diffraction methods. The possible self-assembly process has been discussed with the aid of electrospray mass spectrometry.
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