Polymorphs or solvates? Coordination of 3,5-dihydroxybenzoate to copper and zinc metal centers

Feng, Linsheng; Chen, Zhichao; Zeller, Mat­thias; Luck, Rudy L.

doi:10.1016/j.ica.2012.09.036

Cited by 10 publications

(5 citation statements)

References 66 publications

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“…The coordination modes of carboxylate group to the metal ion are assigned on the basis of separation Dt of t as (COO) and t s (COO) bands. According to literature data, Dt values for monodentate mode are usually much greater than for ionic complexes, Dt for chelating mode are significantly less than for ionic complexes, and Dt for bridging mode are greater than those for chelating (bidentate) complexes and close to the ionic values [39,40]. The value of D[t s -t as ] is 344 cm -1 for polymers 1 and 2, which is comparatively larger than 250 cm -1 indicating the monodentate coordination mode of carboxylate group of hydrogen maleate.…”

Section: Resultsmentioning

confidence: 68%

Synthesis and structure of coordination polymers of praseodymium(III) and erbium(III) with hydrogen maleate and benzene-1,3-disulfonate as linkers

et al. 2015

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Two new 1D coordination polymers [Pr(1,3-BDS)(HMA)(H 2 O) 4 ] n and [Er(1,3-BDS)(HMA)(H 2 O) 4 ] n (1,3-BDS = benzene-1,3-disulfonate and H 2 MA = maleic acid) having one-dimensional zigzag polymeric structure and containing praseodymium and erbium in ?3 oxidation state were synthesized by solution synthesis method. The compositions and structures of coordination polymers were determined by elemental analysis, FT-IR, X-ray diffraction, and results of thermal decomposition. Coordination polymers [Pr(1,3-BDS)(HMA)(H 2 O) 4 ] n and [Er(1,3-BDS)(HMA)(H 2 O) 4 ] n are isomorphous and contain distorted square antiprism geometry around metal ion. Two molecules of benzene-1,3-disulfonate and hydrogen maleate coordinate to each metal ion in unidentate bridging mode to generate a linear zigzag polymeric chain. Four water molecules are also coordinated to each metal ion. Hydrogen bonded interaction involving water molecules, carboxylate and sulfonate groups of adjacent polymer chains lead to two-dimensional polymer expansion. The polymers are thermally robust as is indicated by thermal studies. Graphical abstract

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Section: Resultsmentioning

confidence: 68%

Synthesis and structure of coordination polymers of praseodymium(III) and erbium(III) with hydrogen maleate and benzene-1,3-disulfonate as linkers

et al. 2015

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“…The Δν = ν as -ν s for this pair is 158 cm -1 . The value of Δν = 181 cm -1 in I indicates that carboxylato group of isonicotinate anion is bonded in bridging mode whereas values of Δν = 196 and 158 cm -1 in II suggest that carboxylate groups are bonded in bidentate bridging as well as bidentate chelating mode [33,34]. The in plane δ(OCO) vibra tion modes appear as sharp bands at 686 and 703 cm -1 for I and II, respectively.…”

Section: Resultsmentioning

confidence: 98%

Synthesis, crystal structure, and porosity of 1D coordination polymer of neodymium(III) with isonicotinic acid and dimeric complex of neodymium(III) with nicotinic acid

et al. 2015

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A 1D coordination polymer [Nd 3 (INA) 9 (H 2 O) 6 ] n (I) and a dimeric complex with mononuclear asymmetric unit [Nd(NA) 3 (H 2 O) 2 ] (II) (HINA = isonicotinic acid and HNA = nicotinic acid) were synthe sized. The compounds were characterized by elemental analyses, infrared spectroscopy and single crystal X ray diffraction studies (CIF file CCDC nos. 938976 (I) and 939061 (II). X ray crystal structure analysis reveals that both compounds exhibit rich structural chemistry. Compounds I and II belong to the monoclinic system with space group P2 1 /c. Thermogravimetric analysis has been performed to investigate their thermal stability. The coordination polymer I has meso porous structure with average diameter of pores (~4 nm) and BET surface area 13.62 m 2 /g.

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“…Monomeric compounds [Zn(3, [Zn(3, previously reported [Zn(3, [8]. Interestingly in 4 one 3,5-DHB ligand acts as a bidentate chelate while the other acts as monodentate.…”

Section: Introductionmentioning

confidence: 99%

Syntheses, supramolecular architectures and photoluminescence properties of Zn(II) complexes based on 3,5‑dihydroxybenzoic and pyridine/pyrazole derived ligands

Guerrero

Pou

Bayés‐García

et al. 2018

Inorganic Chemistry Communications

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Five new coordination compounds [Zn(µ-3,5-DHB)2(H2O)2]n (1a), 3) and [Zn(3,5-DHB)2(3-Mepz)2]•H2O (4) (3,5-HDHB = 3,5-dihydroxybenzoic, Isna = isonicotinamide, 4-Acpy = 4-acetylpyridine and 3-Mepz = 3-methylpyrazole) were synthesized in water or water-methanol as solvents. All these compounds have been characterized by elemental analysis, FTIR-ATR and 1H-NMR spectroscopies and Powder X-ray diffraction (PXRD). For compounds 1b-4, X-ray crystal structures have been determined. In these compounds, 3,5-DHB ligand displays different coordination modes. Complex 1b is a coordination polymer, while the addition of the pyridine/pyrazole ligands in the reaction provokes the formation of monomeric compounds (2-4). Moreover, the crystal packing indicates that these complexes expand into 2D/3D network structures mainly by intermolecular hydrogen bond interactions. Finally, the photoluminescent properties of these complexes in solid state have also been investigated. The strong emission observed for 1b indicates that it may be a good candidate for photoluminescent devices.

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Polymorphs or solvates? Coordination of 3,5-dihydroxybenzoate to copper and zinc metal centers

Cited by 10 publications

References 66 publications

Synthesis and structure of coordination polymers of praseodymium(III) and erbium(III) with hydrogen maleate and benzene-1,3-disulfonate as linkers

Synthesis and structure of coordination polymers of praseodymium(III) and erbium(III) with hydrogen maleate and benzene-1,3-disulfonate as linkers

Synthesis, crystal structure, and porosity of 1D coordination polymer of neodymium(III) with isonicotinic acid and dimeric complex of neodymium(III) with nicotinic acid

Syntheses, supramolecular architectures and photoluminescence properties of Zn(II) complexes based on 3,5‑dihydroxybenzoic and pyridine/pyrazole derived ligands

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