搜索 - 科创

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众所周知，碘单质具有挥发性，本文中在特殊的玻璃装置中制备碘单质晶体，具有长期可保存性（还是会产生略微变化但还是大晶体hhh）。不受规定中易升华限制，特此说明。理论准备：不少人可能都见过常压下加热升华...

上次合成的building block是利用Evans辅基进行不对称烷基化。这次是进行不对称Mukuyama Aldol反应反应如图所示：(绘图软件：chemdraw)机理如下：反应时形成六元环过渡态...

简介LM5030是TI公司于2003年推出的一款电流模式推挽PWM控制器，其频率设置仅通过一个外接电阻Rt即可设定（大多同类芯片的频率设置还需要一个定时电容Ct），其函数关系为：对数坐标下，二者基...

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