Structure and thermal behaviour of (SPY-5-12)-(2-aminoethanol-N) (2-aminoethanol-N,O)-bis(theophyllinato)copper(II)dihydrate: a model for DNA-metal interactions

Bombicz, Petra; Madarász, János; Forizs, E.; Foch, Isabella

doi:10.1016/s0277-5387(97)00104-6

Cited by 33 publications

(11 citation statements)

References 12 publications

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“…The CuÐO and CuÐN Hea distances of 2.3263 (16) and 1.9923 (16) A Ê , respectively, are typical for Cu±Hea complexes (Hursthouse et al, 1990;Bombicz et al, 1997). The sac ligand is essentially planar and intramolecular bond lengths are virtually identical to those found in the free saccharin molecule (Okaya, 1969).…”

Section: Commentmentioning

confidence: 98%

trans-Bis(ethanolamine-N,O)bis(saccharinato-N)copper(II)

Yılmaz¹,

Andaç²,

Topçu³

et al. 2001

Acta Crystallogr C

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In the title complex, [Cu(C(7)H(4)NO(3)S)(2)(C(2)H(7)NO)(2)], the Cu(II) centre lies on an inversion centre and exhibits octahedral coordination, with the two ethanolamine (Hea) and two saccharinate [sac; anionic 1,2-benzisothiazol-3(2H)-one 1,1-dioxide] ligands in a trans configuration. The bidentate Hea ligands bridge axial and equatorial positions and the sac anions occupy equatorial sites around the distorted octahedral copper(II) centre [Cu--O = 2.3263 (16), Cu--N(Hea) = 1.9923 (16) and Cu--N(sac) = 2.1776 (16) A].

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Section: Commentmentioning

confidence: 98%

trans-Bis(ethanolamine-N,O)bis(saccharinato-N)copper(II)

Yılmaz¹,

Andaç²,

Topçu³

et al. 2001

Acta Crystallogr C

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“…Theophylline can be deprotonated in basic or neutral media. In the majority of cases, the resulting anionic ligand is monodentate and coordinates through the N7 atom of theophylline (Marzilli et al, 1973;Begum & Manohar, 1994;Bombicz et al, 1997;Buncel et al, 1985), while only in a few cases has a different coordination behaviour been reported, e.g. through the N9 atom of the imidazole ring (Aoki & Yamazaki, 1980).…”

Section: Chemical Contextmentioning

confidence: 99%

Crystal structure of tetraaquabis(1,3-dimethyl-2,6-dioxo-7H-purin-7-ido-κN⁷)cobalt(II)

2017

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4 ], comprises mononuclear molecules consisting of a Co II ion, two deprotonated theophylline ligands (systematic name: 1,3-dimethyl-7H-purine-2,6-dione) and four coordinating water molecules. The Co II atom lies on an inversion centre and has a slightly distorted octahedral coordination environment, with two N atoms of two trans-oriented theophylline ligands and the O atoms of four water molecules. An intramolecular hydrogen bond stabilizes this conformation. A three-dimensional supramolecular network structure is formed by intermolecular O-HÁ Á ÁO and O-HÁ Á ÁN hydrogen bonds.

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“…For the isostructural copper(II) compound, see Sorrell et al (1976). For the theophylline molecule acting as a monodentate anionic ligand, see: Begum & Manohar (1994); Birdsall & Zitzman (1979); Bombicz et al (1997).…”

Section: Related Literaturementioning

confidence: 99%

(Diethylenetriamine)bis(theophyllinato)zinc(II) dihydrate

et al. 2009

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In the title compound, [Zn(C7H7N4O2)2(C4H13N3)]·2H2O, the ZnII ion is pentacoordinated by three N atoms of the diethylenetriamine ligand and one N atom of each of the two theophyllinate anions in a distorted trigonal-bipyramidal geometry. The Zn—N distances range from 2.076 (3) to 2.221 (3) Å. The crystal packing is stabilized by O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds involving the theophylline and diethylenetriamine ligands and uncoordinated water molecules.

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Structure and thermal behaviour of (SPY-5-12)-(2-aminoethanol-N) (2-aminoethanol-N,O)-bis(theophyllinato)copper(II)dihydrate: a model for DNA-metal interactions

Cited by 33 publications

References 12 publications

trans-Bis(ethanolamine-N,O)bis(saccharinato-N)copper(II)

trans-Bis(ethanolamine-N,O)bis(saccharinato-N)copper(II)

Crystal structure of tetraaquabis(1,3-dimethyl-2,6-dioxo-7H-purin-7-ido-κN⁷)cobalt(II)

(Diethylenetriamine)bis(theophyllinato)zinc(II) dihydrate

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Structure and thermal behaviour of (SPY-5-12)-(2-aminoethanol-N) (2-aminoethanol-N,O)-bis(theophyllinato)copper(II)dihydrate: a model for DNA-metal interactions

Cited by 33 publications

References 12 publications

trans-Bis(ethanolamine-N,O)bis(saccharinato-N)copper(II)

trans-Bis(ethanolamine-N,O)bis(saccharinato-N)copper(II)

Crystal structure of tetraaquabis(1,3-dimethyl-2,6-dioxo-7H-purin-7-ido-κN7)cobalt(II)

(Diethylenetriamine)bis(theophyllinato)zinc(II) dihydrate

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Crystal structure of tetraaquabis(1,3-dimethyl-2,6-dioxo-7H-purin-7-ido-κN⁷)cobalt(II)