Thin film of 3-phenyldithiopropyltrimethoxysilane (1) was prepared as a photoreactive surface of masked thiol by in-situ reaction of 3-mercaptopropyltrimethoxysilane (2) with diphenyldisulfide before deposition of the film on quartz substrate. The film of 1 undergoes photochemical oxygenation of sulfur atom more efficiently than that of 2 upon KrF laser (248 nm) irradiation, where a thiyl radical is incorporated as a common intermediate.
                                    在石英基底上沉积 3-巯丙基
三甲氧基硅烷(2)薄膜之前,先将 3-巯丙基
三甲氧基硅烷(1)与二苯基二
硫进行原位反应,制备出 3-苯基二
硫丙基
三甲氧基硅烷薄膜(1),作为掩蔽
硫醇的光活性表面。在 KrF 激光(248 纳米)照射下,1 的薄膜比 2 的薄膜更有效地发生
硫原子的光
化学氧合反应,其中
硫基自由基作为一种常见的中间体加入。