Di-μ-sulfato-O:O'-bis[(2-aminopyrimidine-N1)triaquacobalt(II)] Dihydrate (1), catena-Poly[bis(2-aminopyrimidine-N1)diaquanickel(II)-μ-sulfato-O:O' 2-Aminopyrimidine] (2), (2-Aminopyrimidine-N1)pentaaquanickel(II) Sulfate 2-Aminopyrimidine (3) and catena-Poly[bis(2-aminopyrimidine-N1)aquacopper(ii)-μ-sulfato-O:O' Dihydrate] (4)

Lumme, Paavo; Knuuttila, Hilkka; Lindell, Eva

doi:10.1107/s0108270195001338

Cited by 16 publications

(1 citation statement)

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“…With halides as anions mononuclear and polymeric compounds have been obtained in which ampym acts as a monodentate or a bidentate ligand [3][4][5][6]. With other anions like sulphate [7], triflate [8], nitrate [9] and dicyanamide [10], mononuclear or polynuclear Cu(II) compounds are obtained, all with ampym acting as a monodentate ligand. X-ray structures of a dinuclear methoxido-bridged Cu(II) [1,11] and a hydroxido-bridged Cu(II) compound [12] were also obtained, again with ampym acting as a monodentate ligand.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure and Spectroscopy of catena-poly-bis(azido-N1,N1)(2-Aminopyrimidine)Copper(II)

et al. 2008

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The compound [Cu(ampym)(l 1,1 -N 3 ) 2 ] n (ampym = 2-aminopyrimidine) has been synthesized and characterized by X-ray crystallography and infrared spectroscopy. In addition, Ligand Field and powder EPR measurements have been performed. The structure is solved in space group P21/c with a = 7.303(2), b = 19.716(4), c = 5.949(1) Å , b = 98.17(3), V = 847.9(3) Å 3 , Z = 2 with final R = 0.0382. The coordination geometry around the Cu(II) ion is distorted square pyramidal, with four nitrogen atoms of four bridging azido anions in the basal plane with Cu-N distances that range from 1.998(3) to 2.069(3) Å . The apical position is occupied by a nitrogen atom of the ampym molecule at a Cu-N distance of 2.169(3) Å . The trans-basal angles are 165.7(1) and 143.9(1)°. Weak hydrogen bonding is observed between the two amine hydrogen atoms and nitrogen of an azide anion and the pyrimidine-ring nitrogen atom of a neighbouring molecule (NÁÁÁN distances 3.174(5), 3.106(4) Å ). These last hydrogen bonds (N7ÁÁÁN3) are forming so-called ''WatsonCrick type'' hydrogen bonds. In the infrared the vibrations of the coordinated azide anion are observed at 2,062, 1,273 and 655 cm -1 , while the Cu-N vibrations are observed at 370 and 224 cm -1 . Ligand-field and EPR spectra are uneventful and give spectral parameters expected in the range for such Cu(II) compounds. Magnetic susceptibility measurements reveal a weak antiferromagnetic interaction between the Cu(II) ions.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure and Spectroscopy of catena-poly-bis(azido-N1,N1)(2-Aminopyrimidine)Copper(II)

et al. 2008

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Nickel(II) and cobalt(II) nitrate and chloride networks with 2-aminopyrimidine

et al. 2006

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Nickel(II) and cobalt(II) nitrate and chloride networks with 2-aminopyrimidine (2006). JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, 36(11), 781-791. 2 Index Abstract: Nickel(II) and cobalt(II) nitrate and chloride networks with 2-aminopyrimidine. Abstract The coordination chemistry of 2-aminopyrimidine (PymNH2) with nickel(II) and cobalt(II) nitrate and chloride is reported, including seven new X-ray crystal structures. Two [Ni(NO3)2(PymNH2)2(OH2)] isomers were found (A: C2/c, a = 13.3006(5), b = 7.9727(3), c = 28.5453(11),  = 101.758(2), V = 2963.48(19), Z = 8 and B•½ acetone: P21/c, a = 7.66060(10), b = 10.6792(2), c = 20.6790(3),  = 100.2970(10), 1664.48(5), Z = 4). In both cases one nitrate is monodentate and the other is chelating and the PymNH2 ligands coordinate through ring nitrogen atoms. Hydrogen bonding results in double sheet structure for isomer A, and a three dimensional channeled network for isomer B. [Co(NO3)2(PymNH2)2(OH2)] (C2/c, a = 13.3507(2), b = 7.99520(10), c = 28.6734(3),  = 102.3540(10), V = 2989.77(7), Z = 8) is isostructural to Ni isomer A. [CoCl2(PymNH2)] (Cmcm, a = 3.6139(2), b = 14.3170(7), c = 12.9986(7), V = 672.55(6), Z = 4) is a sheet coordination network, consisting of corner-sharing chains of Co2(-Cl)2 bridged by PymNH2 through ring nitrogen atoms; [CoCl2(PymNH2)2] (C2/c, a = 11.2774(6), b = 6.5947(4), c = 16.5687(9),  = 92.269(3), V = 1231.27(12), Z = 4) is a tetrahedral molecule knit into a ribbon structures through pairs of hydrogen bonds. Isostructural trans-[NiCl2(PymNH2)4] (C2/c, a = 7.67760(10), b = 18.7224(3), c = 15.0418(2),  = 99.6740(10), V = 2131.41(5), Z = 4) and trans-[CoCl2(PymNH2)4] (C2/c, a = 7.69120(10), b = 18.5957(2), c = 4 15.1091(2),  = 99.5280(10), V = 2131.14(5), Z = 4) are simple octahedral molecules, with hydrogen-bonding producing sheet structures.

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Crystal Structures and Properties of Bis(2-Aminopyrimidine-N-)-Bis(Thiocyanato-N)Zinc(II) and Catena-[2-Aminopyrimidine-N- (μ-Thiocynanto-S,N)(Thiocyanato-S)Cadmium(II)]

Jin

Sun

et al. 2009

J Chem Crystallogr

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Abstract: (1993) for Co and Foulds (1990) for Ni. The structures of the title compounds are described in more detail in this paper.,NH2NJ'-NAbstract 2-Aminopyrimidine complexes of aqueous CO Il, Ni I1

Cited by 16 publications

References 8 publications

Synthesis, Crystal Structure and Spectroscopy of catena-poly-bis(azido-N1,N1)(2-Aminopyrimidine)Copper(II)

Synthesis, Crystal Structure and Spectroscopy of catena-poly-bis(azido-N1,N1)(2-Aminopyrimidine)Copper(II)

Nickel(II) and cobalt(II) nitrate and chloride networks with 2-aminopyrimidine

Crystal Structures and Properties of Bis(2-Aminopyrimidine-N-)-Bis(Thiocyanato-N)Zinc(II) and Catena-[2-Aminopyrimidine-N- (μ-Thiocynanto-S,N)(Thiocyanato-S)Cadmium(II)]

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