1 For more complex molecules in whose spectra vibrational detail is not resolved, assignments are difficult to make.

2 Indeed, many of the complex molecules of which they are composed would be liable to fall apart.

3 Like DNA, RNA is a complex molecule made of repeating units of thousands of smaller molecules called nucleotides that link together in very specific, patterned ways.

4 Once self-replication had got under way molecules could pile on other more complex molecules in a loose association.

5 None the less, simple systems are widely used to do abinitio calculations accurate enough to answer important questions for reasonably complex molecules.

6 Furthermore, It is the main research in our laboratory that study on the ultrafast phenomena in man-made optical sub-wavelength structure, nano-structure, complex molecule and bio-molecule.

7 We have now shown that these Mycobacteria release a complex molecule containing a sugar, called mannose .

8 Fortunately for the tea drinkers of Britain, Prussian blue is a complex molecule, so it is almost impossible to release the cyanide ion from it and the poison passes harmlessly through the body.