ring geometry
3.V = 2012. 2A3, Z = 4. The X-ray structure analysis reveals that there is a cis-VO+2 moiety in the molecule. The schiff-base ligands bond to vanadium ( V )through ONO atoms, which form one five-membered and one six-membered ring. The coordination number of vanadium ( V ) is five and the coordination geometry is a distorted trigonal bipyramid.
4.Damping bearing is a kind of bearing with damping ring.It is not the same as traditional bearing not only on geometry but also on material.Damping ring has many merits such as perfect abrasive resistance,good noise proof ability,good self-lubricating property,excellent resistance to impact and its life length is much longer.
