Synthesis and characterization of the first zinc(II) complexes involving kinetin and its derivatives: X-ray structures of 2-chloro-N6-furfuryl-9-isopropyladenine and [Zn(kinetin)2Cl2]·CH3OH
摘要:
A series of the first zinc(II) complexes of the general composition [Zn(L-n)(2)Cl-2]center dot xSolv (1-5) involving kinetin [N6-furfuryladenine, L-1, xSolv = CH3OH, complex 1] and its derivatives, i.e. N6-(5-methylfurfuryl)adenine (L-2, xSolv = 2H(2)O, 2), 2-chloro-N6-furfuryladenine (L-3, 3), 2-chloro-N6-(5-methylfurfuryl)adenine (L-4, 4) and 2-chloro-N6-furfuryl-9-isopropyladenine (L-5, 5), as N-donor ligands has been synthesized. The complexes have been fully characterized by elemental analyses (C, H, N), FTIR, Raman, H-1 and C-13 NMR spectroscopy, conductivity measurements, thermogravimetric (TG) and differential thermal (DTA) analyses. Single crystal X-ray analysis determined the molecular structures of 2-chloro-N6-furfuryl-9-isopropyladenine (L-5) and the complex [Zn(L-1)(2)Cl-2]center dot CH3OH. The Zn(II) ion is tetrahedrally coordinated by two chlorido ligands and two molecules of the L-1 organic compound. The two ligands L-1 are coordinated to the central Zn(II) ion via the N7 atoms. This conclusion can also be drawn from multinuclear NMR spectroscopic experiments. (C) 2010 Elsevier B.V. All rights reserved.
Synthesis and characterization of the first zinc(II) complexes involving kinetin and its derivatives: X-ray structures of 2-chloro-N6-furfuryl-9-isopropyladenine and [Zn(kinetin)2Cl2]·CH3OH
摘要:
A series of the first zinc(II) complexes of the general composition [Zn(L-n)(2)Cl-2]center dot xSolv (1-5) involving kinetin [N6-furfuryladenine, L-1, xSolv = CH3OH, complex 1] and its derivatives, i.e. N6-(5-methylfurfuryl)adenine (L-2, xSolv = 2H(2)O, 2), 2-chloro-N6-furfuryladenine (L-3, 3), 2-chloro-N6-(5-methylfurfuryl)adenine (L-4, 4) and 2-chloro-N6-furfuryl-9-isopropyladenine (L-5, 5), as N-donor ligands has been synthesized. The complexes have been fully characterized by elemental analyses (C, H, N), FTIR, Raman, H-1 and C-13 NMR spectroscopy, conductivity measurements, thermogravimetric (TG) and differential thermal (DTA) analyses. Single crystal X-ray analysis determined the molecular structures of 2-chloro-N6-furfuryl-9-isopropyladenine (L-5) and the complex [Zn(L-1)(2)Cl-2]center dot CH3OH. The Zn(II) ion is tetrahedrally coordinated by two chlorido ligands and two molecules of the L-1 organic compound. The two ligands L-1 are coordinated to the central Zn(II) ion via the N7 atoms. This conclusion can also be drawn from multinuclear NMR spectroscopic experiments. (C) 2010 Elsevier B.V. All rights reserved.