Results 11 to 20 of about 1,560 (144)

Propiverinium picrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
THE TITLE COMPOUND [SYSTEMATIC NAME: 4-(2,2-diphenyl-2-prop-oxyacet-oxy)-1-methyl-piperidin-1-ium picrate], C(23)H(30)NO(3) (+)·C(6)H(2)N(3)O(7) (-), crystallizes as a salt with one cation-anion (propiverinium picrate) pair in the asymmetric unit. A significant number of conformational changes are observed between the crystalline environment of this ...
Jasinski, Jerry P., Butcher, Ray J., Al-Arique, Q. N. M. Hakim, Yathirajan, H. S., Narayana, B.   +4 more
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Gabapentinium picrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
The title compound {systematic name: [1-(carboxy-meth-yl)cyclo-hexyl]methanaminium 2,4,6-trinitro-phenolate}, C(9)H(18)NO(2) (+)·C(6)H(2)N(3)O(7) (-), was synthesized from picric acid and gabapentin. The crystal packing is stabilized by intra-molecular N-H⋯O=N and N-H⋯O-Ph hydrogen bonds. An O-H⋯O inter-action is also present.
Li, Hongqi, Yathirajan, H. S., Mallesha, L., Mohana, K. N., Narayana, B.   +4 more
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Cinnarizinium picrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
In the title salt {systematic name: 4-diphenylmethyl-1-[(E)-3-phenylprop-2-en-1-yl]piperazin-1-ium 2,4,6-trinitrophenolate), C26H29N2 +·C6H2N3O7 −, the cinnarizinium cation is protonated at the piperazine N atom connected to the styrenylmethyl group; the piperazine ring adopts a distorted chair conformaiton.
Yanxi Song, C. S. Chidan Kumar, G. B. Nethravathi, S. Naveen, Hongqi Li   +4 more
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3-Bromoanilinium picrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
In the title compound, C(6)H(7)BrN(+)·C(6)H(2)N(3)O(7) (-), the O atoms of two of the nitro groups are disordered over two sites, the ratios of the refined occupancies being 0.72 (6):0.28 (6) and 0.74 (5):0.26 (5). In the crystal structure, the anions and cations are linked via inter-molecular N-H⋯O hydrogen bonds into chains along [100].
Bo Zhao, Yan-jun Li
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Evaluation of Diazatetraoxa Cryptand as Extractant for Transition Metals and Pb2+ [PDF]

Pakistan Journal of Analytical & Environmental Chemistry, 2014
The extractability of metal cations such as Mn2+, Co2+, Cu2+, Zn2+ and Pb2+ from aqueous phase to organic phase with 19-nitro-6,7,15,16,23,24-hexahydro-13H,26H-14,25-propanotribenzo-[b,I,o][1,4,11,14,7,18]-tetraoxadiazacycloikocine was investigated by ...
Gülsev Dilber, Halit Kantekin, Dilek Başaran, Ümmühan Ocak , Miraç Ocak   +4 more
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1-Methylhydrazinium picrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
In the title salt, CH(7)N(2) (+)·C(6)H(2)N(3)O(7) (-), the dihedral angles between the three nitro groups and the plane of the benzene ring are 22.4 (2), 35.3 (2) and 2.8 (2)°. In the crystal, the components are linked by N-H⋯O and N-H⋯N hydrogen bonds into a two-dimensional network parallel to (10[Formula: see text]).
Xiao-Gang Mu, Xuan-Jun Wang, Youzhi Zhang, Xiaoli Gou, Xia Li   +4 more
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1-Methylpiperazine-1,4-diium dipicrate

Acta Crystallographica Section E, 2011
In the crystal structure of the title compound [systematic name: 1-methylpiperazine-1,4-diium bis(2,4,6-trinitrophenolate)], C5H14N22+·2C6H2N3O7−, the ionic components are connected by relatively strong N—H...O hydrogen bonds
Grzegorz Dutkiewicz, S. Samshuddin, B. Narayana, H. S. Yathirajan, Maciej Kubicki   +4 more
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2-Aminopyrimidinium picrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2007
The geometric parameters of the title compound, C(4)H(6)N(3) (+)·C(6)H(2)N(3)O(7) (-), are in the usual ranges. While two nitro groups are almost coplanar with the aromatic picrate ring [dihedral angles 3.0 (2) and 4.4 (3)°], the third is significantly twisted out of this plane [dihedral angle 46.47 (8)°].
Narayana, Badiadka, Sarojini, Balladka Kunhanna, Prakash Kamath, K., Yathirajan, Hemmige S., Bolte, Michael   +4 more
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Studies on heavy metal removal efficiency and antibacterial activity of 2-(diphenylphosphino)aminopyridine

Macedonian Journal of Chemistry and Chemical Engineering, 2018
The solvent extraction of metal picrates such as Ni2+, Cu2+, Co2+, Pb2+ and Cd2+ from the aqueous to the organic phase was studied using 2-(diphenylphosphino)aminopyridine (Ph2PNHpy).
Özlem Sarıöz, Burcu Malgaç, Yavuz Sürme, Sedef İlk, Muhsin Karaarslan   +4 more
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2-Aminoanilinium picrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2010
In the title compound, C(6)H(9)N(2) (+)·C(6)H(2)N(3)O(7) (-), the three nitro groups of the anion are twisted from the central benzene ring at dihedral angles of 5.4 (1), 27.1 (1) and 32.9 (1)°. In the crystal, inter-molecular N-H⋯O, N-H⋯(O,O) and N-H⋯N hydrogen bonds link the cations and anions into layers parallel to the bc plane.
Yanping Zhao, Rong Peng
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