Spectral, thermal, structural and microhardness studies of tetraaquabis(malonato)cadmium(II)copper(II): A new three-dimensional heterobimetallic framework system

Dhanya, V.S.; Sudarsanakumar, M.R.; Suma, S.; Kurup, M.R. Prathapachandra; Sithambaresan, M.; Roy, Sunalya M.; Eapen, S.M.

doi:10.1016/j.ica.2013.09.026

Cited by 9 publications

(3 citation statements)

References 25 publications

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“…The cadmium atom also shows a distorted octahedral geometry with coordination angles in the range 87.94 (5) to 95.46 (6) . A similar geometry is observed for the Cd atom in the heterobimetallic compound tetraaquabis(malonato)cadmium(II)copper(II) (Dhanya et al, 2014). Na1-O bond distances [2.3471 (16) Hashemian & Mangeli, 2017).…”

Section: Structural Commentarysupporting

confidence: 58%

Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa₂(C₃H₂N₃O₃)₄(H₂O)₈]

Divya¹,

Bijini²,

Dhanya³

et al. 2021

Acta Cryst E

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Heterobimetallic crystals of a cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, namely, μ-aqua-1:2κ2 O:O-heptaaqua-1κ3 O,2κ2 O,3κ2 O-bis(μ-4,6-dioxo-1,4,5,6-tetrahydro-1,3,5-triazin-2-olato)-1:2κ2 O 2:N 1;2:3κ2 N 1:O 2-bis(4,6-dioxo-1,4,5,6-tetrahydro-1,3,5-triazin-2-olato)-1κO 2,3κO 2-2-cadmium-1,3-disodium, [CdNa2(C3H2N3O3)4(H2O)8], were grown by the single gel diffusion technique. The asymmetric unit of the title compound comprises four 1,3,5-triazine-2,4,6-trione ligands, two sodium atoms and one cadmium atom. Of the four ligands, two are monodentately coordinated to two Na atoms. The third ligand is coordinated bidentately to one Na and the Cd atom and the fourth is also coordinated bidentately to the Cd atom and the other Na atom. All the metal atoms are six-coordinate with a distorted octahedral geometry. The water molecules bridge the Na atoms, constructing coordination polymer chains along the a axis and hence are linked by two Cd and one Na coordinations through the cyanuric acid ligands present in the coordination polymer chains, generating a two-dimensional coordination polymer in the (110) plane. The polymer formation is further assisted by means of many intermolecular and intramolecular N—H...O, O—H...O and O–H...N hydrogen bonds between the water molecules and the ligands.

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Section: Structural Commentarysupporting

confidence: 58%

Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa₂(C₃H₂N₃O₃)₄(H₂O)₈]

Divya¹,

Bijini²,

Dhanya³

et al. 2021

Acta Cryst E

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“…When M(3d) metal center is a copper atom and M=Mn, Co, Ni, Zn having close ionic radii, ionic complexes [M(H 2 O) 6 ] 2+ [Cu(cbdc) 2 (H 2 O)] 2– ( 6–9 ) are formed, whereas in the case of M=Cd having a larger ionic radius, 2D coordination polymer 10 is formed. Heterometallic Cu‐M complexes of a similar structure were previously observed to form in systems with anions of unsubstituted malonic acid (see ref …”

Section: Discussionmentioning

confidence: 56%

“…Depending on the conditions, the interaction between bis‐chelate anionic blocks {Cu(mal) 2 } 2– and doubly‐charged 3d‐metal cations in solution can lead to the crystallization of 1D coordination polymers, in which the copper bis‐malonate fragments are linked in chains by transition metal atoms, and ionic complexes, in which cations [Cu(mal) 2 (H 2 O) 2 ] 2– and [M(H 2 O) 6 ] 2+ interact only through hydrogen bonds . The interaction between {Cu(mal) 2 } 2– and Cd 2+ cations having a larger radius leads to the formation of the 3D polymeric structure of the Cu‐Cd heterometallic compound ,. However, the simultaneous variation of both the 3d‐center in the bis‐malonate fragment and the substituent in the malonate anion has not been studied in such systems, although these factors can have a significant effect on the structure of the compounds obtained …”

Section: Introductionmentioning

confidence: 99%

Binding Features of {M(3d)(cbdc)₂} Blocks (M(3d)=V^IVO, Cu^II; cbdc^2–=Dianion of Cyclobutane‐1,1‐Dicarboxylic Acid) in Formation of Heterometallic Structures with d‐Metal Cations

et al. 2018

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Compounds containing bis-chelate dianionic blocks {M(3d) (cbdc) 2 } 2-(M(3d) = V IV O, Cu II ) with cations VO 2 + and Cu 2 + chelated by two anions of dicarboxylic acid have been prepared as crystals when aqueous solutions of vanadyl sulfate VOSO 4 ⋅3H 2 O or copper sulfate CuSO 4 ⋅5H 2 O have been allowed to react with sulfates of d-metals (Mn II , Co II , Ni II , Zn II , and Cd II ) and barium salt of cyclobutane-1,1-dicarboxylic acid (H 2 cbdc = C 4 H 6 (CO 2 H) 2 ) in the 1:1:2 ratio. The nature of the M(3d) metal center has been found to influence on the structure of the heterometallic compounds formed. 1D polymers [M(VO) (cbdc) 2 (EtOH) 2 (H 2 O) 3 ] n (M = Mn (1), Co (2), Ni (3)), molecular dinuclear complex [Zn(VO)(cbdc) 2 (H 2 O) 5 ]⋅H 2 O (4), and 1D polymer {[Cd(VO)(cbdc) 2 (H 2 O) 5 ]⋅H 2 O} n (5) are formed when M(3d) = V IV O, whereas in the case of the bis-chelate block with the Cu II atom, ionic compounds [M(H 2 O) 6 ][Cu(cbdc) 2 (H 2 O)] (M = Mn (6), Co (7), Ni (8), Zn (9)) and 2D polymer {[CdCu(cbdc) 2 (H 2 O) 2 ] ⋅2H 2 O} n have been synthesized. The isolation of paramagnetic centers in compounds 1-10 is confirmed by magnetic measurements and EPR spectroscopy.

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The First Series of Heterometallic Ln^III‐V^IV Complexes Based on Substituted Malonic Acid Anions: Synthesis, Structure and Magnetic Properties

et al. 2018

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The reaction of VOSO 4 with K 2 cbdc (cbdc 2is cyclobutane-1,1-dicarboxylate anion) and Ln(NO 3 ) 3 (Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Tm, Yb, Lu) yielded 17 novel heterometallic Ln III -V IV compounds comprising stable bischelate units {V IV O(cbdc) 2 (H 2 O)}. Three structural types of compounds are formed depending on the nature of the rare-earth metal: 1D polymers {[Ln(VO)(cbdc) 2 (H 2 O) 7 ]·0.5[VO(cbdc) 2 ]} n (structural type I) [Ln = La (1), Ce (2)], 3D polymers {[KLn(VO) 2 (cbdc) 4 (H 2 O) 9 ]·3.5H 2 O} n (structural type II) [Ln = La 5075 [Ln = Y (13), Er (14), Tm (15), Yb (16), Lu (17)] containing dinuclear units {LnV}. Magnetic properties were investigated for all isolated compounds. The Gd III -V IV compound has ferromagnetic and antiferromagnetic exchange interactions between isotropic V IV and Gd III ions. Calculations using the DFT method at the UB3LYP/6-31G(d,p)/SDD level of theory were performed in order to explain the different nature of exchange interactions in two Gd III -V IV pairs. The Yb III -V IV complex displays single-molecule magnet properties; the effective energy barrier was estimated at ΔE eff /k B = 26 K. The magnetic properties of Ln III -V IV compounds with heavy lanthanide ions (Ln III = Er, Tm, Yb) were rationalized in terms of crystal-field calculations for Ln III ions. and clear magnetic hysteresis of purely molecular origin, which are characteristic of single-molecule magnets (SMM). [3] Complexes of 3d-4f metals are considered as good candidates for SMMs due to high anisotropy of some lanthanide ions (Tb III , Dy Meanwhile 3d-4f compounds containing a vanadyl ion V IV O 2+ as the 3d center with a single 3d electron (S = 1 / 2 ) are quite rare, although they may provide insight into the mechanism of spin-spin exchange interactions. Despite quite a large number of V IV -4f complexes were described in recent literature, [11] only a few of them were magnetically characterized. [11a,11b,11d,11e,11g,11j,11l] For example, some V IV -Ln III complexes with ferromagnetically coupled V IV and Ln III ions have been reported. [11d,11e] Ishida et al. [11j] performed AC magnetic susceptibility measurements for five isostructural V IV -Ln III complexes, but these compounds did not exhibit SMM behavior. Besides, 3d-4f complexes are of interest as precursors of complex oxides. [12] One synthetic approach to prepare 3d-4f compounds is based on the use of stable 3d-metal complexes with free functional groups capable of acting as metal-containing ligands, Eur. J. Inorg. Chem. 2018, 5075-5090 www.eurjic.org

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Spectral, thermal, structural and microhardness studies of tetraaquabis(malonato)cadmium(II)copper(II): A new three-dimensional heterobimetallic framework system

Cited by 9 publications

References 25 publications

Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa₂(C₃H₂N₃O₃)₄(H₂O)₈]

Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa₂(C₃H₂N₃O₃)₄(H₂O)₈]

Binding Features of {M(3d)(cbdc)₂} Blocks (M(3d)=V^IVO, Cu^II; cbdc^2–=Dianion of Cyclobutane‐1,1‐Dicarboxylic Acid) in Formation of Heterometallic Structures with d‐Metal Cations

The First Series of Heterometallic Ln^III‐V^IV Complexes Based on Substituted Malonic Acid Anions: Synthesis, Structure and Magnetic Properties

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Spectral, thermal, structural and microhardness studies of tetraaquabis(malonato)cadmium(II)copper(II): A new three-dimensional heterobimetallic framework system

Cited by 9 publications

References 25 publications

Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa2(C3H2N3O3)4(H2O)8]

Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa2(C3H2N3O3)4(H2O)8]

Binding Features of {M(3d)(cbdc)2} Blocks (M(3d)=VIVO, CuII; cbdc2–=Dianion of Cyclobutane‐1,1‐Dicarboxylic Acid) in Formation of Heterometallic Structures with d‐Metal Cations

The First Series of Heterometallic LnIII‐VIV Complexes Based on Substituted Malonic Acid Anions: Synthesis, Structure and Magnetic Properties

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Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa₂(C₃H₂N₃O₃)₄(H₂O)₈]

Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa₂(C₃H₂N₃O₃)₄(H₂O)₈]

Binding Features of {M(3d)(cbdc)₂} Blocks (M(3d)=V^IVO, Cu^II; cbdc^2–=Dianion of Cyclobutane‐1,1‐Dicarboxylic Acid) in Formation of Heterometallic Structures with d‐Metal Cations

The First Series of Heterometallic Ln^III‐V^IV Complexes Based on Substituted Malonic Acid Anions: Synthesis, Structure and Magnetic Properties