Syntheses and crystal structures of copper(II), zinc(II) and cadmium(II) complexes containing pyridine, quinoline and 2-methylquinoline

Jin, Shouwen; Liu, Hui; Chen, Guqing; An, ZhiYi; Lou, Yulei; Huang, Kai; Wang, Daqi

doi:10.1016/j.poly.2015.04.017

Cited by 15 publications

(5 citation statements)

References 61 publications

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“…Each Zn(II) ion adopts a slightly distorted square‐pyramidal environment (τ=0.0035 ( 1 ) and 0.042, 0.045 ( 2 )) [14] , coordinated equatorially to four carboxylate oxygen atoms [Zn−O: 2.018‐2.077 Å ( 1 ); 2.0092‐2.0614 Å ( 2 )] and apically to the 3‐Phpy or 4‐Phpy [Zn−N: 2.045 Å ( 1 ); 2.0396 and 2.0465 Å ( 2 )]. The values are comparable with the reported values in [Zn( L1 ) 2 (ql)] 2 ( L1 = p ‐chlorophenoxyacetic acid; ql=quinoline), [Zn(μ‐4‐OBz) 2 (py)] 2 , [Zn(μ‐4‐OBz) 2 (py)] 2 ⋅0.5CH 3 OH (4‐OBz= p ‐chlorobenzoic acid; py=pyridine) [17] and [Zn( L2 ) 2 (L 1 )] 2 ( L2 =1,1’:3’,1’’‐terphenyl‐4,4’,4’’,6’‐tetracarboxylic acid; L 1 =4‐amino‐3,5‐diphenyl‐1 H ‐pyrazole) …”

Section: Resultsmentioning

confidence: 55%

Zn(II) and Cd(II) Coordination Dimers Based on Mixed Benzodioxole‐Carboxylate and N‐Donor Ligands: Synthesis, Characterization, Crystal Structures and Photoluminescence Properties

et al. 2017

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Four new compounds, formulated as [Zn(μ‐Pip)2(3‐Phpy)]2 (1), [Zn(μ‐Pip)2(4‐Phpy)]2 (2), [Cd(μ‐Pip)(Pip)(3‐Phpy)2]2 (3) and [Cd(μ‐Pip)(Pip)(4‐Phpy)2]2 (4) (HPip=1,3‐benzodioxole‐5‐carboxylic acid; Phpy= phenylpyridine), have been successfully assembled based on rigid carboxylate/pyridine ligands. These four compounds have been fully characterized by analytical and spectroscopic methods. The aim of the present study is to investigate the structural effect and the influence of the size of metal on the class, geometry and type of coordination of the carboxylate ligands (syn‐syn, syn‐anti) in the final 3D‐arrangements of the structures. Finally, luminescence properties of these new four coordination dimers have been investigated.

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Section: Resultsmentioning

confidence: 55%

Zn(II) and Cd(II) Coordination Dimers Based on Mixed Benzodioxole‐Carboxylate and N‐Donor Ligands: Synthesis, Characterization, Crystal Structures and Photoluminescence Properties

et al. 2017

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“…Several parameters are established to distinguish between them: the value which range from 1 (D3h) to 0 (C4v) [30], the Lapical-M-Lbasal angle (102° for C4v) or the dihedral angles between the apical faces (53.1° for D3h, 75.7° for C4v) and the apical-basal faces (101.5° for D3h, 119.8° for C4v) [31]. All these compounds clearly exhibit a C4v geometry, taking into account these three factors: All the Cu-O and Cu-N distances for the three compounds are in the same order as described in the literature [17,[32][33][34][35][36] (Table 3). For 2, Cu(II) ion is 0.109 Å displaced out of the basal plane towards the axial site while in 3 and 4a, Cu(II) ion is displaced 0.029 Å and 0.062 Å, respectively.…”

Section: Structural Studiesmentioning

confidence: 97%

“…Furthermore, the addition of the acetyl group in 4a allows the formation of supplementary interactions: one aliphatic hydrogen of the acetyl group interacts with the oxygen atom of the dioxole ring propagating the 1D chain along the c axis and forming 2D layers along the bc plane. Interestingly, there are few structures with similar 1D chain with a double H-bond interaction belonging from water -carboxylate [17,[32][33][34][35][36], which distinguishes compound 4a from the rest is the presence of three methanol and one occluded water molecules. Its supramolecular 2D squaregrid extended structure (Fig.…”

Section: Structural Studiesmentioning

confidence: 99%

Reactivity of homoleptic and heteroleptic core paddle wheel Cu(II) compounds

Sánchez-Férez

Guerrero

Ayllón

et al. 2019

Inorganica Chimica Acta

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The compound [Cu(μ-Pip)(μ-OAc)(MeOH)]2 (1) (Pip=Piperonylate, OAc=acetate, MeOH=methanol) has been obtained in high percentage yield. Its reactivity with pyridine/pyrazole derivative ligands (pyridine (py), 3-phenylpyridine (3-Phpy) and 4-acetylpyridine (4-Acpy)) and 3,5-dimethylpyrazole (3,5-dmpz) leads to four monomeric compounds: [Cu(Pip)2(dPy)2(H2O)] (dPy=py (2), 3-Phpy (3) and 4-Acpy (4a)) and [Cu(Pip)2(3,5-dmpz)2] (5). Furthermore, the reaction of 1 with HPip in MeOH:DMF solvent under reflux conditions yields the homoleptic core paddle-wheel compound [Cu(μ-Pip)2(DMF)]2•2DMF (6). The reaction between 6 and 2-benzylpyridine (2-Bzpy) yields the paddlewheel core compound [Cu(Pip)2(2-Bzpy)]2 (7). All compounds have been fully characterized by analytical and spectroscopic techniques and their X-ray crystal structures have been determined. In this set of compounds, the carboxylate ligand (Pip) displays different coordination modes (monodentate (2-4), bidentate chelate (5) and bridged (1, 6 and 7)). Moreover, their extended structures are discussed: the crystal packing indicates hydrogen bond propagation, which defines 1D (2-5) or 2D (6 and 7) supramolecular networks...

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“…The diaquabis[2-hydroxy-5-(phenyldiazenyl)benzoato]zinc(II) complex (Jin et al, 2015) has the carboxylate ligands in two quite different planes, thereby precluding the sorts ofstacking motifs described above, and indeed the structure contains nointeractions at all involving the carboxylate ligands. The diaquabis[2-hydroxy-5-(phenyldiazenyl)benzoato]zinc(II) complex (Jin et al, 2015) has the carboxylate ligands in two quite different planes, thereby precluding the sorts ofstacking motifs described above, and indeed the structure contains nointeractions at all involving the carboxylate ligands.…”

Section: Interactionmentioning

confidence: 99%

π–π stacking motifs in dialkylbis{5-[(E)-2-aryldiazen-1-yl]-2-hydroxybenzoato}tin(IV) complexes

Linden

Baul

2016

Acta Crystallogr C

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The diorganotin(IV) complexes of 5-[(E)-2-aryldiazen-1-yl]-2-hydroxybenzoic acid are of interest because of their structural diversity in the crystalline state and their interesting biological activity. The structures of dimethylbis{2-hydroxy-5-[(E)-2-(4-methylphenyl)diazen-1-yl]benzoato}tin(IV), [Sn(CH3)2(C14H11N2O3)2], and di-n-butylbis{2-hydroxy-5-[(E)-2-(4-methylphenyl)diazen-1-yl]benzoato}tin(IV) benzene hemisolvate, [Sn(C4H9)2(C14H11N2O3)2]·0.5C6H6, exhibit the usual skew-trapezoidal bipyramidal coordination geometry observed for related complexes of this class. Each structure has two independent molecules of the Sn(IV) complex in the asymmetric unit. In the dimethyltin structure, intermolecular O-H...O hydrogen bonds and a very weak Sn...O interaction link the independent molecules into dimers. The planar carboxylate ligands lend themselves to π-π stacking interactions and the diversity of supramolecular structural motifs formed by these interactions has been examined in detail for these two structures and four closely related analogues. While there are some recurring basic motifs amongst the observed stacking arrangements, such as dimers and step-like chains, variations through longitudinal slipping and inversion of the direction of the overlay add complexity. The π-π stacking motifs in the two title complexes are combinations of some of those observed in the other structures and are the most complex of the structures examined.

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Syntheses and crystal structures of copper(II), zinc(II) and cadmium(II) complexes containing pyridine, quinoline and 2-methylquinoline

Cited by 15 publications

References 61 publications

Zn(II) and Cd(II) Coordination Dimers Based on Mixed Benzodioxole‐Carboxylate and N‐Donor Ligands: Synthesis, Characterization, Crystal Structures and Photoluminescence Properties

Zn(II) and Cd(II) Coordination Dimers Based on Mixed Benzodioxole‐Carboxylate and N‐Donor Ligands: Synthesis, Characterization, Crystal Structures and Photoluminescence Properties

Reactivity of homoleptic and heteroleptic core paddle wheel Cu(II) compounds

π–π stacking motifs in dialkylbis{5-[(E)-2-aryldiazen-1-yl]-2-hydroxybenzoato}tin(IV) complexes

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