The Helical Coordination Polymer Ag(Nic)₂(NO₃)

Abstract

Single crystals of Ag(Nic)2(NO3) were obtained from an aqueous solution of silver nitrate and nicotine as plate‐like colourless crystals. The crystal structure (monoclinic, P21, Z = 2, a = 933.3(2), b = 1136.8(2), c = 1024.3(2) pm, β = 94.49(2)°) consists of helical chains in which one nicotine molecule bridges with both the pyridine‐N and the pyrrol‐N coordinating and with a second nicotine molecule terminally coordinating with the pyridine‐N. A monodentate nitrate‐O is completing the coordination sphere of Ag+ to a distorted tetrahedron. Ag–N distances (229‐240 pm) attest for a rather strong attraction of the nicotine molecules to Ag(I) and thereby constitute essentially a one‐dimensional, helical coordination polymer according to the formulation Ag(Nic1)2/2(Nic2)1/1(NO3)1/1.

Crystal structure of [3-(2-(N-1H-methylpyrrolidinyl))pyridine]zinc(II) trichloride, Zn(C10H15N2)Cl3

“…In nicotine-copper(II) complexes,the pyrrolidine Ν atom is deprotonated. In nicotine-mercury(II) and nicotine-silver(I) compounds, the pyrrolline ring is connected through the deprotonated N2 atom to an another mercury(Π) and silver(I) atom and form a chain polymeric complexes [6,[11][12][13]. In addition, the absolut configurations of C6 and N2 can be given as S (Snicotine was used as a starting material).…”

“…Several studies on the preparation and characterization of nicotine-metal complexes have been reported. But very little structural information on these compounds is available [4][5][6][7][8][9][10][11][12][13][14]. We have previously reported on crystal structure of the Cu(II) and Hg(ü) complexes of the type [Cu4Cu-Br)60(Nicotine) 4 ], [[HgX 2 (Nicotine)]"] (X = Br, I) [10][11][12].…”

Crystal structure of [3-(2-(N-1H-methylpyrrolidinyl))pyridine]zinc(II) trichloride, Zn(C10H15N2)Cl3

“…Several studies on the preparation and characterization of nicotine-metal complexes have been reported. But very little structural information on these compounds is available [4][5][6][7][8][9][10][11][12][13][14]. We have previously reported on crystal structure of the Cu(II) and Hg(II) complexes of the type [Cu 4 (m-Br) 6 O(Nicotine) 4 ], [[HgX 2 (Nicotine)] n ](X=Br, I) [10][11][12].…”

“…In nicotine-copper(II) complexes,the pyrrolidine Na tom is deprotonated. In nicotine-mercury(II) and nicotine-silver(I) compounds, the pyrrolline ring is connected through the deprotonated N2 atom to an another mercury(II) and silver(I) atom and form achain polymeric complexes [6,[11][12][13]. In addition, the absolut configurations of C6 and N2 can be given as S (Snicotine was used as astarting material).…”

Structure and catalytic activity of a penta-silver supramolecular cluster through hydrogen bonding and 2,2′-bipyridine

“…The synthesis of such coordination polymers (CPs) is highly influenced by numerous factors such as the solvent system, temperature, counter ions with different bulk or coordination abilities, template, metal/ligand ratio and even pH [11][12]. Besides these aspects, non-covalent interactions such as hydrogen bonding, p-p interactions, and metal-metal interactions play an important role in the construction of supramolecular structures [13]. Among these polymers, the Ag(I) coordination polymers are of great interest because the Ag-donor atom bond shows the high lability and the resulting Ag(I) coordination polymers can generally be crystallized allowing investigation by X-ray diffraction [14,15].…”