Bis(2-fluorobenzyl)(N-salicylidenevalinato-κ3N,O,O′)tin(IV)

✍ Scribed by Ding, Ruifang ;Zhu, Jun ;Zhang, Daodong ;Ling, Aixia ;Yin, Handong

• Publisher: International Union of Crystallography
• Year: 2007
• Tongue: English
• Weight: 735 KB
• Volume: 63
• Category: Article
• ISSN: 1600-5368
• DOI: 10.1107/s1600536807013840

✦ Synopsis

A sample of salicylidene-valine (1.0 mmol) and sodium methylate (1.0 mmol) was stirred in 20 ml dichloromethane at room temperature for 30 min. To this solution was added di(o-fluorobenzyl)tin dichloride (1.0 mmol). The mixture was stirred at 40°C under nitrogen for 18 h. Evaporation of the filtrate left a yellow solid, which was recrystallized from dichloromethane-hexane (1:3) to give yellow crystals (yield 67%).

Refinement

One of the F atoms is disordered over two positions with site occupation factors of 0.841 (5) and 0.159 (5) A l l the H atoms were positioned geometrically and refined using a riding model with C-H = 0.93-0.98 Å and with U iso (H) = 1.2 (1.5 for methyl groups) times U eq (C). The methyl groups were allowed to rotate but not to tip.