how to produce an intensely coloured molecule with a conjugated azo linked (single/double/ single/ double bonded) structure, and avoid missing conjugated azo link in a structure.
All aromatic azo compounds are completely conjugated.For example from aniline prepare diazonium salt then couple it with phenol you will get the required azo compound for procedure use book ( practical organic chemistry by Vogel) in this book you will see many other azo compound preparation procedures. Good luck