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1.
Hong-Zhen Xie Shi-Jie Huang Jin Zhou Shu-Ping Yu Dan-Yi Wei 《Transition Metal Chemistry》2010,35(7):773-778
Two coordination complexes, namely [Co(phen)(H2O)L]·H2O and [Ni2(phen)2(H2O)2L2]·4H2O (phen = 1,10-phenanthroline, H2L = 1,3-adamantanedicarboxylic acid) have been hydrothermally synthesized and structurally characterized by single crystal
X-ray diffraction. [Co(phen)(H2O)L]·H2O consists of 1D chains of the complex plus lattice H2O molecules. Interchain hydrogen bonds and π–π stacking interactions assemble the 1D chains into 2D layers. [Ni2(phen)2(H2O)2L2]·4H2O is a binuclear complex which is assembled into a 3D supramolecular structure by strong hydrogen bonds and π–π stacking interactions.
Both complexes were characterized by physico-chemical and spectroscopic methods. 相似文献
2.
Lead(II) coordination polymer [Pb(5,5′-dmbpy)(μ-NO3)2]
n
(1) and mononuclear complex [Pb(6,6′-dmbpy)(NO3)2] (2) (where 5,5′-dmbpy is 5,5′-dimethyl-2,2′-bipyridine and 6,6′-dmbpy is 6,6′-dimethyl-2,2′-bipyridine) were synthesized from
reaction of lead(II) nitrate with 5,5′-dmbpy and 6,6′-dmbpy, respectively. Both complexes were thoroughly characterized by
elemental analysis, infrared, 1H and 13C NMR, UV–Vis, emission spectroscopy, as well as single-crystal X-ray diffraction. Polymer 1 possesses one-dimensional (1D) chain structure, whilst complex 2 exhibits a discrete complex which provide an extended chain parallel to the [001] direction, via weak intermolecular C–H···O
hydrogen bonding. Coordination number of Pb2+ in 1 and 2 are 8 and 6, respectively, with the stereochemically active lone pair, resulting in the hemidirected geometry for both complexes.
The nitrate anions exhibit a tridentate chelating/bridging mode in 1, and a bi-chelating mode in 2. The supramolecular features in these complexes are guided/influenced by weak directional intermolecular C–H···O hydrogen
bonding (1 and 2) together with π–π and C–H···π (1) interactions. The luminescence studies of 1 and 2 confirmed that the position of methyl substituent on 2,2′-bipyridine rings has a profound effect on the fluorescence emissions. 相似文献
3.
Goldberg A. E. Kiskin M. A. Kozyukhin S. A. Sidorov A. A. Eremenko I. L. 《Russian Chemical Bulletin》2011,60(5):1012-1015
The new binuclear complex [(1,10-phen)2Zn2(μ2-OOCR)2(η2-OOCR)2]·4THF (2·4THF, RCOO− is the β-naphthoate anion) was synthesized. According to the single-crystal X-ray diffraction study, a one-dimensional supramolecular
structure is formed through intra- and intermolecular π-π interactions between the phenanthroline moieties of complex 2. Compound 2 exhibits photoluminescence properties at room temperature. 相似文献
4.
S. K. Shakshooki H. B. El Hanash R. M. El-Mehdawi M. A. El-Mellah E. A. Arafa A. M. Bejey 《Journal of Radioanalytical and Nuclear Chemistry》1999,240(2):433-434
γ-Zirconium phosphate-phosphite, γ-Zr·PO4·H2PO3·2H2O, (γ-ZrPP), was prepared and characterized. Direct treatment of γ-zirconium phosphate-phosphite with an ethanol solution
of 0.1M 1,10-phenanthrolin and 2,2'-bipyridyl gave the well defined composites, γ-Zr·PO4·H2PO3(phen)0.15·H2O and γ-Zr·PO4·H2PO3(bipy)0.18·0.6H2O respectively.K
d
values of a mixture of lanthanide ions: La3+, Sm3+, Eu3+ and Yb3+ for the intercalated products and for γ-ZrPP in HNO3 solution at room temperature and at pH 2 and 4 were determined by a radiotracer technique.140La,152mEu,153Sm and175Yb radioisotopes were used for the equilibration experiment using 500 μl (4.0·10−5 mmole) each of the solutions of the tracers as a mixture in 7.5 M HNO3 solution at the desired pH with 0.1 g of γ-ZrPP and of the intercalated products. The selectivity order was found to be dependent
on the nature of the ligand and on the pH. The 2,2'-bipyridyl product posseses, at pH 2 in general, a highK
d
value, specially for Sm3+ (9815.9) compared to that of the 1,10-phenanthrolin product (3375.5) and to γ-ZrPP (419.8). This could be attributed to partial
deintercalation of the 2,2'-bipyridyl at pH 2 and increasing of ionogenic groups. 相似文献
5.
From the reaction mixtures containing Cu(NO3)2, Na[N(CN)2], KPF6 and 2,2′-bipyridine (bpy) or 1,10- phenanthroline (phen) in 1:1:1:2 molar ratios, [Cu(bpy)2N(CN)2][Cu(bpy)2(H2O)](PF6)3 (1b) and [Cu (phen)2N(CN)2]PF6 (1p) complexes were isolated. Measured i.r. spectra confirm the presence of all functional groups in both complexes and, moreover,
they indicate monodentate coordination of dicyanamide through the cyano nitrogen atom in (1p). The structure of (1b) contains two crystallographically independent complex cations. In both, Cu is coordinated by two chelating bpy molecules,
and either dicyanamide anion or water molecule fills the fifth position, completing the basal plane. The CuII atoms in (1p) are coordinated by two chelating phen ligands and by one dicyanamide anion in the equatorial plane. Hexafluorophosphate anions
in (1b) and (1p) remain uncoordinated. Besides the ionic forces in both structures, the structure of (1b) is stabilized by strong O—H···F and O—H···N hydrogen bonds and, moreover, both structures are stabilized by weak C—H···F
hydrogen bonds and possible π-π interactions between pyridine rings of bpy or phen molecules. 相似文献
6.
《Journal of Coordination Chemistry》2012,65(16):1873-1882
Two lanthanide complexes with 2-fluorobenzoate (2-FBA) and 1,10-phenanthroline (phen) were synthesized and characterized by X-ray diffraction. The structure of each complex contains two non-equivalent binuclear molecules, [Ln(2-FBA)3?·?phen?·?CH3CH2OH]2 and [Ln(2-FBA)3?·?phen]2 (Ln?=?Eu (1) and Sm (2)). In [Ln(2-FBA)3?·?phen?·?CH3CH2OH]2, the Ln3+ is surrounded by eight atoms, five O atoms from five 2-FBA groups, one O atom from ethanol and two N atoms from phen ligand; 2-FBA groups coordinate Ln3+ with monodentate and bridging coordination modes. The polyhedron around Ln3+ is a distorted square-antiprism. In [Ln(2-FBA)3?·?phen]2, the Ln3+ is coordinated by nine atoms, seven O atoms from five 2-FBA groups and two N atoms of phen ligand; 2-FBA groups coordinate Ln3+ ion with chelating, bridging and chelating-bridging three coordination modes. The polyhedron around Ln3+ ion is a distorted, monocapped square-antiprism. The europium complex exhibits strong red fluorescence from 5D0?→?7F j ( j?=?1–4) transition emission of Eu3+. 相似文献
7.
Three novel heteropolytungstates, [Cu(phen)2]4[α-SiW12O40] (1), [Cu4(4,4′-bpy)3(2,2′-bpy)4][α-SiW12O40] · H2O (2) and [Cu(4,4′-bpy)(4,4′-Hbpy)0.5]2[PW12O40] (3) (phen = 1,10-phenanthroline, 4,4′-bpy = 4,4′-bipyridine, 2,2′-bpy = 2,2′-bipyridine), have been synthesized and characterized
by elemental analyses, IR, TG analyses and single-crystal X-ray diffraction. Compound (1) exhibits interesting chiral layer constructed from interperpendicular helical chains running along a crystallographic 21 axis in the c and a directions. Furthermore, the chiral layers are connected by the [α-SiW12O40]4− anions via hydrogen bonding interactions to form a 3D superamolecular structure. The [Cu4(4,4′-bpy)3(2,2′-bpy)4]4+ coordinated complexes in compound (2) are packed together via the aromatic π–π stacking interactions and exhibit an interesting 3D sandglasslike “host” network with 1D channels, in which
[α-SiW12O40]4− anions “guests” reside. Compound (3) has a unique 2D superamolecular network, which is composed of cationic CuI coordination polymer chains and discrete [PW12O40]3− polyoxoanions as linkers. It is noteworthy that the monprotonated 4,4′-bpy ligands of (3) act as arms and connect the adjacent 2D network, generating a 3D interpenetrating superamolecular structure. 相似文献
8.
Two hexa-coordinate copper(II) complexes formulated as [Cu(phen)(4-dmampy)2(ClO4)2] and [Cu(bpy)(3-ampy)2(ClO4)2] · 0.5CH3OH · 0.5H2O (phen = 1,10–phenanthroline bpy = 2,2′-bipyridine, 3-ampy = 3-aminopyridine, 4-dmampy = 4-dimethylaminopyridine), and one
low-spin ferrous complex formulated as [Fe(dmbpy)3](ClO4)2 · H2O (dmbpy = 4,4′-dimethyl-2,2′-bipyridine), were synthesized by in situ ligand substitution at room temperature, and characterized by X-ray single-crystal diffraction. This is the first structural
report where either 4-dmampy and phen molecules, or 3-ampy and bpy molecules, are located simultaneously around one metal
center. 相似文献
9.
《Journal of Coordination Chemistry》2012,65(2):273-283
The saccharinato complexes [Zn(phen)2(sac)(H2O)]sac (1) and [Zn(sac)(dmp)(H2O)](sac) (2), where phen = 1,10-phenanthroline, dmp = 2,9-dimethyl-1,10-phenanthroline, and sac =saccharinato ion/ligand, were synthesized by the reaction of [Zn(sac)2(H2O)4] · 2H2O with ligands and have been characterized by elemental analysis, IR, and 1H NMR spectroscopies. Conductivity of complexes was measured in DMSO. Compound 1 is characterized by single crystal X-ray diffraction and compared with some isomorphous zinc-saccharinate complexes reported previously. Complex 1 crystallizes in the triclinic system, space group P 1 , with Z = 2, and consists of alternating slightly distorted octahedral [Zn(phen)2(sac)(H2O)]+ and noncoordinated saccharinate. The zinc bound aqua is hydrogen bonded to an oxygen of carbonyl in the saccharinate ligand and the SO2 group in the saccharinate counter-ion from an adjacent molecule. Intermolecular and intramolecular hydrogen bonds and C–H ··· O and C–H ··· N short contacts lead to a 3-D network. 相似文献
10.
《Journal of Coordination Chemistry》2012,65(3):424-430
Four 2-D coordination polymers Ln2(phen)2(C5H6O4)3 [Ln?=?Pr(1), Eu(2), Er(3), Yb(4), phen?=?1,10-phenanthroline] were obtained via hydrothermal reactions and determined by X-ray diffraction analysis. The crystal structure data reveal that these complexes are isostructural. In the asymmetric unit, the two Ln(III) ions are nine-coordinate and have similar coordination environments. The Ln(III) ions are built into 2-D layers by three different coordination modes of glutarate. The resulting 2-D layer forms 3-D supramolecular architecture by two types of π···π stacking interactions. All the complexes were characterized by IR spectra and thermogravimetric analysis, and the emission spectrum shows that Eu2(phen)2(C5H6O4)3 possesses strong luminescence. 相似文献
11.
《Journal of Coordination Chemistry》2012,65(10):1545-1552
Lead(II) 4,4,4-trifluoro-1-naphthyl-1,3-butanedione (Htfnb) complexes of 1,10-phenanthroline (phen) and 2,2′-bipyridine (bpy), [Pb2(bpy)2(tfnb)2] (1) and [Pb2(phen)2(tfnb)2] (2), have been synthesized and characterized by elemental analysis, IR, spectroscopy and X-ray crystallography. The self-assembly of 1 and 2 is likely to be caused by C–H ··· F–C, C–H ··· O and π–π stacking interactions. 相似文献
12.
Ji-Bo Liu Hao-Hong Li Zhi-Rong Chen Jun-Bo Li Xiao-Bo Chen Chang-Cang Huang 《Journal of Cluster Science》2009,20(3):515-523
Abstract A 1-D hybrid copper(I) halides, [(phen)Cu3I3]
n
(phen = 1,10-phenanthroline)(1) with novel D6R (double six-membered rings) Cu6I6 cores, was synthesized by solvothermal reaction and characterized by single-crystal X-ray diffraction. In 1, nitrogen atoms from phen replace two I of CuI4 tetrahedron to give distorted tetrahedral geometries (CuI2N2), then CuI2N2 tetrahedron shares corners via μ3-I to generate an extended 1-D zigzag chain. Two zigzag chains combines with one 1-D (Cu4I4)
n
chain containing D6R cores via μ3-I-Cu (from cores) bonds to form the infinite 1-D ribbonlike polymer along the a-axis. Furthermore, the title compound is stabilized by conspicuous C–H···I hydrogen bonds, π–π and d10–d10 metallic interactions. Experimental and theoretical optical property investigation indicates that 1 possesses semiconductor property. DFT calculation was executed to probe the electronic structure of 1. To our interest, phen act as a property control species with its π* electrons appear in the forbidden band.
Graphical Abstract A hybrid copper(I) halides [(phen)Cu3I3]
n
containing D6R cores was structurally determined, which was stabilized by conspicuous C–H···I hydrogen bonds, π–π and d10–d10 metallic interactions and possesses semiconductor property. DFT calculation indicate phen act as a property control species
with its π* electrons appear in the forbidden band.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
13.
E. V. Ivanova M. V. Puzyk K. P. Balashev 《Russian Journal of General Chemistry》2009,79(10):2096-2101
Biscyclometallated [(M(N∧N))2(μ-dphpm)](ClO4)2 and [(N∧N)Pd(μ-dphpm)Pt(N∧N)]Cl2 complexes [M = Pd(II), Pt(II); (N∧N) ethylenediamine (En), 1,10-phenanthroline (phen); dphpm2 — bisdeprotonated form of 4,6-diphenylpyrimidine)] have been characterized by the 1H NMR, electronic absorption and emission spectroscopy, and also cyclic voltammetry methods. The lowest unoccupied molecular
orbital (LUMO) of biscyclometallated complexes with ethylenediamine, responsible for low-energy photo- and electro-stimulated
processes irrespective of the metal nature, is assigned to the π* orbital mainly localized on the pyrimidine part of the bridging
ligand. In the case of complexes with phenanthroline chelating ligands, the replacement of one or two palladium metal centers
[{Pd(phen)}2(μ-dphpm)]2+ by platinum centers changes the LUMO nature of the complexes for the π* orbital mainly localized on the peripheral metal-complex
fragment {Pt(phen)}. 相似文献
14.
Hydrothermal reaction of zinc acetate with diethyl [(phenylsulfonyl)methyl]phosphonate as well as 1,10-phenanthroline (phen)
afforded a novel zinc(II) phosphonate with the formula of [Zn4(PhSO2CH2PO3)4(phen)2(H2O)2]·2H2O. Such compound features two conformational isomeric 1D chains which are regulated by two different π···π stacking interactions.
In addition, it exhibits broad blue fluorescent emission band at 387 nm. 相似文献
15.
Using 1,10-phenanthroline monohydrate and CuBr2 in molar ratios of 1:1 and 2:1, in CH3OH/H2O (ϕr = 1:1), the complexes [(phen)CuBr2]2, (I), and {[(phen)2CuBr]Br·H2O}, (II), have been prepared. The hydrogen bondings and aqua bridges between coordinated and noncoordinated bromides of II have been observed by XRD. Complex II has a triclinic crystal structure with distorted trigonal bipyramidal coordination geometry. Possibilities of ligand exchange
with hydroxide or ammonia have been examined in both complexes. While the mononuclear complex II is stable in a refluxed ammonia solution and the complex {[phen)2CuBr]Br·3H2O}, (IV), trihydrate of II, is obtained; the binuclear complex I reacts with the ammonia solution to replace one of its bromides in the subunits with hydroxide to give {[(phen)2Cu2Br2(OH)2]·4H2O}, (III). Structural and electrical properties of the complexes have been investigated by elemental analysis, vibrational and electronic
spectroscopy, mass spectrometry, TGA, XRD and the four-point probe method. The temperature coefficients of resistivity and
the activation energies of the complexes have also been obtained. All complexes behave as intrinsic semiconductor in the temperature
range of 310–440 K. 相似文献
16.
《Journal of Coordination Chemistry》2012,65(9):1592-1599
The coordination polymer {[Pb(cca)(phen)]H2O} n (H2cca?=?2-carboxycinnamic?acid and phen?=?1,10-phenanthroline) was synthesized by hydrothermal reaction and structurally characterized by single-crystal X-ray diffraction. The complex possesses a 1-D chain structure composed of infinite Pb-cca-Pb linkages, in which the [PbO4N2] subunits are linked by bridging cca in bis(chelating-bridging) coordination mode. The coordination around the lead(II) is hemi-directed and weak Pb···O interactions are observed that result in a double-chain structure. The chains are combined to generate a 3-D supramolecular structure through interchain C–H···π, C–H···O, and π···π stacking interactions. Fluorescence of the complex originates from π*–π transitions of the ligand. 相似文献
17.
D. Czakis-Sulikowska A. Czylkowska J. Radwańska-Doczekalska R. Grodzki E. Wojciechowska 《Journal of Thermal Analysis and Calorimetry》2007,90(2):557-564
New mixed-ligands complexes with empirical formulae: M(2,4′-bpy)2L2·H2O (M(II)Zn, Cd), Zn(2-bpy)3L2·4H2O, Cd(2-bpy)2L2·3H2O, M(phen)L2·2H2O (where M(II)=Mn, Ni, Zn, Cd; 2,4′-bpy=2,4′-bipyridine, 2-bpy=2,2′-bipyridine, phen=1,10-phenanthroline, L=HCOO−) were prepared in pure solid state. They were characterized by chemical, thermal and X-ray powder diffraction analysis, IR
spectroscopy, molar conductance in MeOH, DMF and DMSO. Examinations of OCO− absorption bands suggest versatile coordination behaviour of obtained complexes. The 2,4′-bpy acts as monodentate ligand; 2-bpy and phen as chelating ligands. Thermal studies were performed in static air atmosphere. When the temperature raised the dehydration
processes started. The final decomposition products, namely MO (Ni, Zn, Cd) and Mn3O4, were identified by X-ray diffraction. 相似文献
18.
Dai-Zheng Liao Li-Cun Li Zong-Hui Jiang Shi-Ping Yan Peng Cheng Geng-Lin Wang Xin-Kan Yao Hong-gen Wang 《Transition Metal Chemistry》1992,17(4):356-359
Three novel heterobinuclear complexes have been prepared and identified as [Cu(oxap)Ni(L)2](ClO4)2·ξH2O, where oxap denotes theN,N′-bis(2-aminopropyl)oxamido dianion and L denotes 2,2′-bipyridine (bipy), 1,10-phenanthroline (phen) or 5-nitro-1,10-phenanthroline
(NO2-phen). The crystal structure of [Cu(oxap)Ni(phen)2]-(ClO4)2·2H2O has been determined. Crystal data: triclinic, space group
, a=12.079 (6), b=12.409 (4), c=17.261 (8) ?, α=70.91 (2), β=86.72 (4), γ=89.19 (3)o. At room temperature, Z=2. The CuII is in a square planar environment and the NiII is in an octahedral environment. The Cu−Ni distance is 5.292 ?. The temperature dependences of the magnetic susceptibilities
of [Cu(oxap)Ni(phen)2]-(ClO4)2·2H2O and [Cu(oxap)Ni(bipy)2](ClO4)2 have been studied in the 4.2–300 K range, giving the exchange integral J=−92.4 cm−1 for bipy and J=−94.3 cm−1 for phen. These results are commensurate with antiferromagnetic interactions between the adjacent metal ions. 相似文献
19.
Ahmet Bulut brahim Uar Okan Zafer Yeilel Hasan budak Halis
lmez Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m526-m528
The title mononuclear [Cu(sq)(phen)2]·3H2O complex [sq is squarate (C4O4) and phen is 1,10‐phenanthroline (C12H8N2)] has been synthesized and the structure consists of a neutral mononuclear [Cu(sq)(phen)2] unit and three solvate water molecules. The CuII ion has distorted square‐pyramidal coordination geometry, comprised of one carboxylate O atom from a monodentate squarate ligand and four N atoms from two chelating phen ligands. An extensive three‐dimensional network of OW—H⋯O/OW hydrogen bonds, face‐to‐face π–π interactions between the 1,10‐phenanthroline aromatic rings and a weak π–ring interaction are responsible for crystal stabilization. 相似文献
20.
Kinetics of the coordination reaction of lanthanide (LaIII, EuIII) α-hydroxycarboxylates [LnL3(H2O)2] with 1,10-phenanthroline (phen) in methanol-water (v/v, 3:2) were studied at 25°C by calorimetric titration. A one-step reaction process in accordance with the rate law has been suggested. The reaction is found to be first order for both lanthanide α-hydroxycarboxylates and phen. We have evaluated rate constants of the reactions. It is found that a linear free energy relationship exists between the stability constants of the lanthanide-α-hydroxycarboxylate-phen ternary complex and the rate constants. It is also found that a linear free energy relationship exists between the rate constants of La-hydroxycarboxylate with phen and the acid strength of α-hydroxy-acid as primary ligand, but the linear free energy relationship does not exist in the Eu-α-hydroxycarboxylate-phen ternary complex. The influence of other factors upon the reaction rate constants was also discussed. 相似文献