Large size anion binding with iron(ii) complexes of a 5,5′-disubstituted-2,2′-bipyridine ligandElectronic supplementary information (ESI) available: synthesis and characterization of 1a–c. All new compounds were characterised by CHN, 1H NMR, and ESI-MS. See http://www.rsc.org/suppdata/cc/b2/b211616b/

Wu, Biao; Xiao, Yang; Janiak, Christoph; Lassahn, Paul G.

doi:10.1039/b211616b

Cited by 48 publications

(33 citation statements)

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“…Conversely, in 2 and 3 the presence of water molecules or hydroxyl groups leads to strong O-HÁ Á ÁO interactions, both intermolecular and intramolecular. In 2, the coordinated water molecules, besides being involved in intramolecular interactions, act as H-bond donors towards the O2 atoms of an adjacent molecule, giving rise to the R 2 2 (12) ring as shown in Fig. 7.…”

Section: Packingmentioning

confidence: 99%

Influence of nitrogen donor ligands on the coordination modes of copper(ii) 2-nitrobenzoate complexes: structures, DFT calculations and magnetic properties

et al. 2014

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Three novel copper(II) 2-nitrobenzoate complexes, [Cu(g-pic) 2 (2-nitrobenzoate) 2 ] 1, [Cu(b-pic) 2 (2-nitrobenzoate) 2 (H 2 O) 2 ] 2 and [Cu 2 (H 2 tea) 2 (2-nitrobenzoate) 2 ]Á2(H 2 O) 3 (where g-pic = 4-methylpyridine, b-pic = 3-methylpyridine and H 2 tea = mono deprotonated triethanolamine), were isolated by addition of g-pic, b-pic and H 3 tea to the hydrated copper(II) 2-nitrobenzoate, [Cu 2 (2-nitrobenzoate) 4 (H 2 O) 2 ]Á2H 2 O, suspended in a methanol : water (4 : 1) mixture. The newly synthesized complexes have been characterized by elemental analyses, thermogravimetric analysis (TGA), spectroscopic techniques (EPR, IR and UV/Visible), magnetic susceptibility measurements, single crystal X-ray structure determination and DFT study. All compounds crystallize in the monoclinic crystal system with the P2 1 /c space group. X-ray structure determination revealed the presence of monomers in both 1 and 2 and dimer in 3 with the deprotonated oxygen atom of the H 2 tea ligand bridging two Cu(II) atoms. Two co-crystallized water molecules are also present in 3. The crystal lattice is stabilized by C-HÁ Á ÁO hydrogen bonding interactions in 1 and O-HÁ Á ÁO, C-HÁ Á ÁO hydrogen bonding interactions in 2 and 3. The dimeric complex exhibits relatively strong ferromagnetic exchange with J = À100 cm À1 (corresponding to H = JS 1 S 2). The zero-field splitting parameters (zfs) of the dimer triplet states D and E were derived from HF EPR spectra recorded at moderately low temperatures. The sign of D was determined from low-temperature HF EPR spectra.

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Section: Packingmentioning

confidence: 99%

Influence of nitrogen donor ligands on the coordination modes of copper(ii) 2-nitrobenzoate complexes: structures, DFT calculations and magnetic properties

et al. 2014

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“…Metal complexes with three (modified) 2,2′-bipyridine ligands are of continous interest (Janiak et al, 1999;Wu et al, 2003;Yang et al, 2004a,b). Tris(2,2′-bipyridine)copper structure are known with the anions tris(oxalato)chromate(III) (Juric et al, 2006), polyoxovanadate (Dong et al, 2006), polyoxotungstate (Niu et al, 2004), bis(bis(2-thioxo-1,3-dithiole-4,5-dithiolato)-nickelate(II) (Faulmann et al, 1998), tetraphenylborate (Murphy et al, 2006) and perchlorate (Anderson, 1972;Liu et al, 1991;Majumdar et al, 1998;Pavlishchuk et al, 1999).…”

Section: S1 Commentmentioning

confidence: 99%

Tris(2,2′-bipyridine-κ²N,N′)copper(II) bis(tetrafluoridoborate)

et al. 2007

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Key indicators: single-crystal X-ray study; T = 203 K; mean (C-C) = 0.003 Å; disorder in solvent or counterion; R factor = 0.036; wR factor = 0.088; data-toparameter ratio = 13.6.The title compound, [Cu(C 10 H 8 N 2 ) 3 ](BF 4 ) 2 , shows the expected Jahn-Teller distortion at the pseudo-octahedrally coordinated Cu II atom. Each Cu II complex cation is surrounded by six BF 4 À anions and each anion by three cations with weak C-HÁ Á ÁF hydrogen bonds between them. One of the two BF 4 À anions exhibits a rotational disorder (0.6:0.4) around one of the B-F bonds.

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“…[1][2][3][4] Generation of a symmetric, metal-organic receptor can be achieved in one of two ways. One is to coordinate three ditopic ligands in a manner 20 related to the well-documented ruthenium or iridium tris-2,2'-bipyridyl (bipy) complexes.…”

Section: Introductionmentioning

confidence: 99%

Anion receptor coordination tripods capped by [9]ane-S₃

et al. 2013

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The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. function as supramolecular receptors for anions via three tripodally arranged 3-aminopyridine ligands. The [9]ane-S 3 ligand stabilises the tripodal complexes which are more readily prepared and studied than their -arene ruthenium(II) analogues. Pyrenyl derivative 4 displays some activity as a photophysical anion sensor but the anion response is complicated by the complexes concentration dependent emission behaviour. The receptors bind common anions in relatively polar media forming both 1:1 and 1:2 host-10 anion complexes with the CH anion interactions involving the thioether ring being implicated in anion binding as well as the convention NH donors.

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Abstract: Three 5,5'-substituted 2,2'-bipyridyl ligands around a metal atom form two clefts which can encapsulate sulfate, perchlorate, or nitrate anions.

Cited by 48 publications

References 12 publications

Influence of nitrogen donor ligands on the coordination modes of copper(ii) 2-nitrobenzoate complexes: structures, DFT calculations and magnetic properties

Influence of nitrogen donor ligands on the coordination modes of copper(ii) 2-nitrobenzoate complexes: structures, DFT calculations and magnetic properties

Tris(2,2′-bipyridine-κ²N,N′)copper(II) bis(tetrafluoridoborate)

Anion receptor coordination tripods capped by [9]ane-S₃

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Abstract: Three 5,5'-substituted 2,2'-bipyridyl ligands around a metal atom form two clefts which can encapsulate sulfate, perchlorate, or nitrate anions.

Cited by 48 publications

References 12 publications

Influence of nitrogen donor ligands on the coordination modes of copper(ii) 2-nitrobenzoate complexes: structures, DFT calculations and magnetic properties

Influence of nitrogen donor ligands on the coordination modes of copper(ii) 2-nitrobenzoate complexes: structures, DFT calculations and magnetic properties

Tris(2,2′-bipyridine-κ2N,N′)copper(II) bis(tetrafluoridoborate)

Anion receptor coordination tripods capped by [9]ane-S3

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Tris(2,2′-bipyridine-κ²N,N′)copper(II) bis(tetrafluoridoborate)

Anion receptor coordination tripods capped by [9]ane-S₃