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Acta Crystallographica Section E, 2011 The title compound, H3O+·C6H2N3O7−, consists of one picrate anion and one oxonium cation. The oxonium cation is located on a crystallographic twofold axis and both its H atoms are disordered, each over two symmetry-equivalent positions
Shou-Wen Jin +4 more
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Liquid-Liquid Extraction of Transition Metal Cations by Glyoximes and Their Macrocyclic Glyoxime Ether Derivatives [PDF]
Journal of Chemistry, 2013 Liquid-liquid extraction of various alkalis (Li+, Na+, K+, and Cs+), transition metals (Co2+, Ni2+, Cu2+, Zn2+, Cd2+, and Hg2+), and Pb2+ cations with phenylglyoxime (L1), p-tolylglyoxime (L2), N′-(4′-Benzo[15-crown-5])phenylaminoglyoxime (L3), and N ...
Nazan Karapinar +2 more
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Crystals, 2023 The crystal structures of two pseudopolymorphic forms of S(+)clopidogrel–picrate are reported. Form 1 crystallizes in the monoclinic space group P21 with an ionic couple S(+)ClopH+·Pic− and a molecule of solvent ethanol in the asymmetric unit, while Form
Aleksandar Cvetkovski +6 more
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The synthesis of 4H-pyran containing hemispherands via pyrylium salts [PDF]
, 1986 Two new hemispherands 2a and 2b containing a central 4H-pyran unit were synthesized via appropiately substituted 2,6-phenyl pyrylium salts; largest ΔGo values of complexation of 2a and 2b with different alkali picrates are found for Na+ and K+
Dijkstra, P.J. +4 more
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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 +4 more
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A Second Crystal Polymorph of Anilinium Picrate [PDF]
, 2004 The crystal structure of a second monoclinic polymorph of anilinium picrate shows a three-dimensional hydrogen-bonded polymer with strong primary interspecies interactions involving the proximal phenolate and adjacent nitro group O-atom acceptors and ...
Healy, Peter +2 more
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Phthalazin-1(2H)-one–picric acid (1/1) [PDF]
, 2007 The geometric parameters of the title compound, C8H6N2O·C6H3N3O7, are in the usual ranges. The three nitro groups are almost coplanar with the aromatic picrate ring [dihedral angles 10.2 (2)°, 7.62 (16) and 8.08 (17)°].
Bolte, Michael +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 +4 more
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Extended conformation of putrescine occurring on a center of symmetry in its 1:2 complex with malonic acid [PDF]
, 1997 The 1,4-butane diammonium (putrescine) crystalizes with propanedioic acid (malonic monoanions in space group Pcab (1,4-butane diammonium hydrogen propanedioate, C4H14N22+.2C(3)H(3)O(4)(-)).
Babu, A.M. +2 more
core +1 more source
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 +4 more
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