Biomemic Synthesis, Crystal Structure of Molybdenum and Tungsten Chiral Octahedral Complex(NH3CH2CH2CH2NH2)2[Mo0.4W0.6O2(C6H4O2)2] and Its Interaction with ATP by 1H, 13C,31P and 15N NMR

Abstract

Abstract: A chiral octahedral molybdenum complex(NH₃CH₂CH₂CH₂NH₂)₂[Mo_<sup>0.4 W_<sup>0.6 O₂(C₆H₄O₂)₂] was obtained by the reaction of tetra-butyl ammonium β-octamolybdate with catechole and 1,3-diaminopropane in the mixed solvent of CH₃OH and CH₃CN, characterized by X-ray diffraction, and its interaction with ATP was studied by ¹H, ¹³ C, ³¹ P and ¹⁵ N NMR. The crystal is orthorhombic with space group Pcan, a=0.750 1(2) nm, b=2.399 4(7) nm, c=1.217 8(4) nm, Z=4. The central metal ion exhibits distorted octahedral coordination with cis dioxo catechole. The ¹H and ¹³ C NMR studies reveal that the central metals were reduced to M(Ⅴ) and a little catecholato ligand was hydrolyzed when the complex is dissolved in D₂O but were oxidized to M(Ⅵ) and almost part of catecholato ligands dissociated with the central metals while it is mixed with ATP in D₂O. The shift of the ¹H, ¹³ C, ³1 P and ¹⁵ N chemical shifts in adenine of ATP suggest that there is a coordinated interaction between central metal and the N atoms in adenine, and the coordination might be responsible for the anti-tumor and DNA cleavage activities of the title complex.

Key words: Molybdenum and tungsten chiral oitahedral complex, Crystal structure, NMR, ATP

CLC Number:

O614

TrendMD:

LU Xiao-Ming, DENG Yuan, LI Li, JIANG Ling, MAO Xi-An, YE Chao-Hui. Biomemic Synthesis, Crystal Structure of Molybdenum and Tungsten Chiral Octahedral Complex(NH₃CH₂CH₂CH₂NH₂)₂[Mo_0.4W_0.6O₂(C₆H₄O₂)₂] and Its Interaction with ATP by ¹H, ¹³C,³¹P and ¹⁵N NMR[J]. Chem. J. Chinese Universities, 2005, 26(4): 611.

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Biomemic Synthesis, Crystal Structure of Molybdenum and Tungsten Chiral Octahedral Complex(NH₃CH₂CH₂CH₂NH₂)₂[Mo_0.4W_0.6O₂(C₆H₄O₂)₂] and Its Interaction with ATP by ¹H, ¹³C,³¹P and ¹⁵N NMR

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