Crystal Structure, Nano-particle Morphology and Interaction with ATP of [ NH3 CH2 CH（ NH2 ） CH3 ]2 [ M（ Ⅵ ） O2 （ OC6 H4 O）2 ] （M = Mo0. 6 W0. 4 ） and Its Activity to Promote DNA Cleavage

The title complex NH_3CH_2CH(NH_2)CH_3]_2 M(Ⅵ)O_2(OC_6H_4O)_2](M= Mo_(0.6)W_(0.4))was synthesized via a simple solution-phase chemical route.The determination of single crystal X-ray diffraction revealed that the title compound is crystallized in a monoclinic system with P2(1)/n space group,a=1.0913(10)nm,b=1.0442(10)nm,c=1.8842(19)nm,α=90°,β=96.530(17)°,γ=90°,Z=4,and V=2.133(4)nm3.The mononuclear anionic unit M(Ⅵ)O2(OC6H4O)2]2-displays chiral pseudo-octahedral MO_6] coordination geometry and is linked by chiral cations via hydrogen bond and π…π stacking interaction.The transmission electron microscopy images show that the title complex is comprised of nano-particles with diameters ranging from 20 to 50 nm.The NMR study shows the 1H downfield chemical shifts of NH_3CHaHbCH(NH_2)CH_3] cations in the title complex when it is mixed with adenosine-triphosphate(ATP),and the chemical shift difference between Ha and Hb is increased greatly,and most of the catecholate ligands dissociate from the central metal atoms.The DNA cleavage activity experiment reveals that DNA cleavage promoted by the title complex is lower than that by Na_2MoO_4 which possesses antitumor pro-perty,but higher than that by Na_2WO_4.

Crystal Structure, Nano-particle Morphology and Interaction with ATP of [NH3CH2CH(NH2) CH3]2 [M(VI)O2 (OC6H4O)2] (M = Mo0.6 W0.4) and Its Activity to Promote DNA Cleavage

The title complex NH₃CH₂CH(NH₂) CH₃]₂ M(VI)O₂ (OC₆H₄O)₂] (M = Mo_0.6 W_0.4) was synthesized via a simple solution-phase chemical route. The determination of single crystal X-ray diffraction revealed that the title compound is crystallized in a monoclinic system with P2(1)/n space group, a = 1.0913 (10) nm, b = 1.0442 (10) nm, c = 1.8842 (19) nm, = 90°, β = 96.530 (17)°, γ = 90°, Z = 4, and V = 2. 133 (4) nm³. The mononuclear anionic unit M(VI) O₂ (OC₆H₄O)₂]^2? displays chiral pseudo-octahedral MO₆] coordination geometry and is linked by chiral cations via hydrogen bond and π…π stacking interaction. The transmission electron microscopy images show that the title complex is comprised of nano-particles with diameters ranging from 20 to 50 nm. The NMR study shows the ¹H downfield chemical shifts of NH₃CH_aH_bCH(NH₂)CH₃]⁺ cations in the title complex when it is mixed with adenosine-triphosphate (ATP), and the chemical shift difference between Ha and Hb is increased greatly, and most of the catecholate ligands dissociate from the central metal atoms. The DNA cleavage activity experiment reveals that DNA cleavage promoted by the title complex is lower than that by Na₂MoO₄ which possesses antitumor property, but higher than that by Na₂WO₄.