A Cadmium Anionic 1-D Coordination Polymer {[Cd(H2O)6][Cd2(atr)2(μ2-btc)2(H2O)4] 2H2O}n within a 3-D Supramolecular Charge-Assisted Hydrogen-Bonded and π-Stacking Network

Tahli, Anas; Köc, Ümit; Elshaarawy, Reda F.M.; Kautz, Anna Christin; Janiak, Christoph

doi:10.3390/cryst6030023

Cited by 13 publications

(12 citation statements)

References 46 publications

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“…Although this Cd–O bond is weak, it is significantly shorter than the sum of the van der Waals radii. A similar situation was reported with several Cd complexes , , . The resulting coordination (7+1) can be approximately described as a distorted two‐capped octahedron.…”

Section: Resultssupporting

confidence: 78%

Syntheses and Crystal Structures of Two Cadmium Methanetetrabenzoates Featured by Open Framework and Infinite Layers

Harms

Köferstein

Görls

et al. 2019

Zeitschrift anorg allge chemie

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Colorless single crystals of Cd2[μ8‐MTB]·3H2O·DMF (1) were prepared in DMF/H2O solution [1: space group C2/c (no. 15) with a = 1821.30(6), b = 2175.08(6), c = 1269.87(4) pm, β = 129.684(1)°]. The connection between the methane‐p‐benzoate tetraanions (MTB4–) and the Cd2+ cations leads to a three‐dimensional framework with channels extending along [110] and [110] with openings of 670 pm × 360 pm. The channel‐like voids accommodate water molecules and N,N‐dimethylformamide (DMF) molecules not bound to Cd2+. Colorless single crystals of [Cd4(2,2′‐bipy)4(μ7‐MTB)2]·7DMF (2) were prepared in DMF in the presence of 2,2′‐bipyridine [2: space group P1 (no. 2) with a = 1224.84(4), b = 1418.85(5), c = 2033.49(4) pm, α = 85.831(2)°, β = 88.351(2)°, γ = 68.261(1)°]. The coordination of MTB4– to Cd2+ results in infinite layers parallel to (001). The layers, not connected by any hydrogen bonds, contain small openings of about 320 pm × 340 pm.

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Section: Resultssupporting

confidence: 78%

Syntheses and Crystal Structures of Two Cadmium Methanetetrabenzoates Featured by Open Framework and Infinite Layers

Harms

Köferstein

Görls

et al. 2019

Zeitschrift anorg allge chemie

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“…Similar structures with polyanionic chains and cation exchanger features were found in e.g. dicobalt‐1,2,4,5‐benzenetetracarboxylate octadecahydrate and hexa‐aquacadmium(II)‐ catena ‐[bis(4‐amino‐1,2,4‐triazole)tetraaquabis‐(benzene‐1,3,5‐tricarboxylato)‐dicadmate(II)] dihydrate , …”

Section: Resultssupporting

confidence: 66%

Synthesis, Crystal Structure, and Characterization of Two Novel One- and Two-Dimensionally Polymeric Copper(II) Phosphonoacetates

Köferstein

Arnold

Robl

2017

Z. Anorg. Allg. Chem.

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Blue single crystals of Cu[μ2‐OOC(CH2)PO3H]·2H2O (1) and Cu1.5[μ3‐OOC(CH2)PO3]·5H2O (2) were prepared in aqueous solution. In compound 1 [space group C2/c (no. 15) with a = 1623.3(2), b = 624.0(1), c = 1495.5(2) pm, β = 122.45(1)°], Cu is coordinated by three oxygen atoms stemming from the hydrogenphosphonoacetate dianion and three water molecules to form a distorted octahedron. The Cu–O bonds range from 190.4(3) to 278.5(3) pm. The connection between the Cu2+ cations and the hydrogenphosphonoacetate dianions leads to a two‐dimensional structure with layers parallel to (101). The layers are linked by hydrogen bonds. In compound 2 [space group P1 (no. 2) with a = 608.2(1), b = 800.1(1), c = 1083.6(1) pm, α = 94.98(1)°, β = 105.71(1)°, γ = 109.84(1)°], two crystallographically independent Cu2+ cations are coordinated in a square pyramidal and an octahedral fashion, respectively. The Cu–O bonds range from 192.9(2) to 237.2(2) pm. The coordination of the phosphonoacetate trianion to Cu(1) results in infinite polyanionic chains parallel to [100] with a composition of {Cu(H2O)[OOC(CH2)PO3]}nn–. Hydrated Cu(2) cations are accommodated between the chains as counterions. 1 and 2 show structural features of cation exchangers. Magnetic measurements reveal a paramagnetic Curie‐Weiss behavior. Compound 2 shows antiferromagnetic coupling between Cu2+ ions due to a super‐superexchange coupling. The UV/Vis spectra of 1 suggest three d–d transition bands at 763 nm (2B1 → 2E), 878 nm (2B1 → 2B2), and 1061 nm (2B1 → 2A1). Thermoanalytical investigations in air show that compound 1 is stable up to 165 °C, whereas decomposition of 2 begins at 63 °C.

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“…It is worth noting that the O12 is carboxylate oxygen contained in one of the 2pyCOO − that uncoordinated with any metal ions. In this case, the O12 behaving as bifurcated hydrogen bonds acceptor (Figure 2 The stabilization of a title compound is supported by the supramolecular interactions defined as hydrogen bonds and π-π interactions [17,18]. The intermolecular and intramolecular hydrogen bonds are observed as all water molecules in compound 1 behaving as hydrogen bond donors to the nearest oxygen atoms.…”

Section: Resultsmentioning

confidence: 93%

“…The stabilization of a title compound is supported by the supramolecular interactions defined as hydrogen bonds and π-π interactions [17,18]. The intermolecular and intramolecular hydrogen bonds are observed as all water molecules in compound 1 behaving as hydrogen bond donors to the nearest oxygen atoms.…”

Section: Resultsmentioning

confidence: 99%

A Heterobimetallic 2-D Coordination Polymer [Na2(Cu2I2(2pyCOO)4)(H2O)4]n (2pyCOO−=picolinate) within a 3-D Supramolecular Architecture

2016

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Abstract:A heterobimetallic 2-D coordination polymer, [Na 2 (Cu 2 I 2 (2pyCOO) 4 )(H 2 O) 4 ] n (1) (2pyCOO=picolinate) was synthesized and characterized. The complex was also structurally characterized using single X-ray diffraction studies that revealed the complex 1 having a vertex symbol of 4.8 2 which corresponds to fes topology. Together with hydrogen bonds and interdigitating π···π interactions, these thus facilitate the formation of 3-D supramolecular network. The nitrogen gas absorption amount of 1 at 77 K shows a small volume of N 2 sorption isotherm with a small Langmuir and a Brunauer-Emmett-Teller (BET) surface area indicating that the heterobimetallic 3-D supramolecular of 1 exhibits a very weak ability of adsorbing gas.

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A Cadmium Anionic 1-D Coordination Polymer {[Cd(H2O)6][Cd2(atr)2(μ2-btc)2(H2O)4] 2H2O}n within a 3-D Supramolecular Charge-Assisted Hydrogen-Bonded and π-Stacking Network

Cited by 13 publications

References 46 publications

Syntheses and Crystal Structures of Two Cadmium Methanetetrabenzoates Featured by Open Framework and Infinite Layers

Syntheses and Crystal Structures of Two Cadmium Methanetetrabenzoates Featured by Open Framework and Infinite Layers

Synthesis, Crystal Structure, and Characterization of Two Novel One- and Two-Dimensionally Polymeric Copper(II) Phosphonoacetates

A Heterobimetallic 2-D Coordination Polymer [Na2(Cu2I2(2pyCOO)4)(H2O)4]n (2pyCOO−=picolinate) within a 3-D Supramolecular Architecture

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