REAL-TIME INVESTIGATION OF THE GROWTH-KINETICS OF AN ORGANOMETALLIC COMPLEX CRYSTAL ATMB

This paper reports the growth kinetics of a new kind of organometallic complex crystal triallylthiourea mercury bromide (ATMB), investigated by in situ microscopic observation. The step trains formed by the lay er growth mechanism have larger width (ranged from 2 to 15 mu m) and l ower height (40-250 nm). The relationship between the growth tate a an d the relative supersaturation sigma was obtained by directly measurin g the movement of step trains of ATMB crystal in aqueous solution. The variation of growth mechanism with supersaturation sigma is also disc ussed.