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The titled dinuclear uranyl complex, U2O18N4H2·2(C5H7N2) 2(H2O) was crystallised in Monoclinic (C2/c) space group with the cell parameters a = 18.0728(3) b = 10.6896(3) c = 13.9068(3)Å, α = γ = 90.00° β = 103.988(2)°. In the structure, the U(VI) atom is eight coordinated with slightly distorted hexagonal bipyramidal geometry around the U(VI) ion. Two oxide ligands in the axial positions and four oxygen atoms from two bidentate nitrate ligands and two oxygen atoms from two hydroxy groups in the equatorial plane form the coordination sphere around the uranium atom. The two hydroxy groups act as bridging ligands between the uranyl ions generating a dinuclear unit having an inversion centre. The coordinated and non coordinated nitrate O atoms, axial uranyl O atoms, bridged hydroxy O atom, the non coordinated 2-aminopyridinium ion and the lattice water molecule play a vital role in assembling the three-dimensional structure via an extensive network of intermolecular O–H···O, N–H···O and C–H···O hydrogen bonds and aromatic π–π stacking interaction. The U(VI) atom is eight coordinated with slightly distorted hexagonal bipyramidal geometry. The three-dimensional structure is built through extensive network of intermolecular O–H···O, N–H···O, C–H···O hydrogen bonds and aromatic π–π stacking interaction. [ABSTRACT FROM AUTHOR]

N-benzyladeninium nitrate, ( 1), CHN NO crystallizes in P2/ c, with a = 15.0035(13), b = 5.3788(5), c = 16.8954(13) Å, β = 107.331(6)°, Z = 4 and N-benzyladeninium 3-hydroxy picolinate, ( 2), CHN CHNO, crystallizes in P1, with a = 8.3017(4), b = 14.6170(7), c = 14.7909 (8) Å, α = 78.801 (4), β = 81.979 (4),γ = 88.849 (4)°, Z = 4. In both the salts, the cation exists as N(7)H tautomer with protonation at the N atom. The dihedral angle of 76.64 (16)° for ( 1), 67.91(12)° for (cation A) and 68.27 (13)° for (cation B) in ( 2), between the adenine plane and phenyl ring plane, the distal orientation of the N6 substituent with respect to the imidazole ring and the free N1 position, make these benzyladeninium cations meet all the requirements necessary for cytokinin activity. The crystal structures are stabilized by N-H···N, N-H···O, C-H···O hydrogen bonds and C-H···π stacking interaction between symmetry related benzyladenine molecule. Graphical Abstract: Supramolecular architectures in the crystal structures of N-Benzyladeninium nitrate and N-Benzyladeninium 3-hydroxy picolinate salts. [Figure not available: see fulltext.] [ABSTRACT FROM AUTHOR]