Pyrene-based ammonium bromides combined with g-C(3)N(4) for the synergistically enhanced fixation reaction of CO(2) and epoxides.
Pyrene-based ammonium bromides combined with g-C(3)N(4) for the synergistically enhanced fixation reaction of CO(2) and epoxides.
复制标题
芘基溴化铵与 g-C3N4 结合，协同增强 CO2 和环氧化物的固定反应
作者：
通过溴甲基芘和不同烷基链的叔胺与石墨氮化碳（g-C3N4）通过π-π堆积相互作用反应，合成了一种新型芘基溴化铵（PABs）。研究了新型芘基溴化铵在均相和异相中与 g-C3N4 的结合，在温和条件下进行环氧化物的 CO2 固定反应。显然，该组合被证明是环氧化物转化的有效系统。 g-C3N4 和 PAB 之间的相互作用通过量子化学计算得到证实。 g-C3N4/Py-C12在80℃、大气压和无溶剂条件下表现出优异的环状碳酸酯产率（高于93%）。使用 g-C3N4/Py-C12 进行初步动力学研究，计算出活化能为 61.5 kJ mol−1。 g-C3N4 和 PAB 的协同相互作用在环氧化物的 CO2 固定反应中发挥着重要作用。
A new type of pyrene-based ammonium bromides (PABs) was synthesized via the reaction of bromomethyl pyrene and tertiary amines with different alkyl chains combined with graphitic carbon nitride (g-C3N4) through π–π stacking interactions. The new pyrene-based ammonium bromides were investigated both in homogenous phase and heterogeneous phase combining with g-C3N4 for the CO2 fixation reaction of epoxides under mild conditions. Obviously, the combination was proved to be an efficient system for the conversion of epoxides. The interaction between g-C3N4 and PABs was confirmed by quantum chemical calculations. g-C3N4/Py-C12 exhibited an excellent yield of cyclic carbonates (above 93%) at 80 °C, atmospheric pressure and solvent-free conditions. A preliminary kinetic study was performed using g-C3N4/Py-C12 and the activation energy was calculated to be 61.5 kJ mol−1. The synergistic interaction of g-C3N4 and PABs plays an important role in the CO2 fixation reaction with epoxides.
登录
查看更多内容
布朗斯台德酸离子液体催化环氧化物与二氧化碳的偶联
影响因子：
16.5
作者：
Chang, Tao;Gao, Xiaorui;Jing, Huanwang
通讯作者：
Jing, Huanwang
DOI：
10.1016/j.jiec.2020.07.001
发表时间：
2020-10-25
影响因子：
6.1
作者：
Dong, Ju-Ping;Zhao, Chen;Liu, Cheng-Mei
通讯作者：
Liu, Cheng-Mei
新型氮化碳/金属氧化物纳米复合材料作为 CO2 和环氧化物偶联的高效且稳定的催化剂
影响因子：
4.2
作者：
Gu, Yongqiang;Ping, Ran;Sun, Jianmin
通讯作者：
Sun, Jianmin
影响因子：
7.7
作者：
Chand, Hushan;Choudhary, Priyanka;Krishnan, Venkata
通讯作者：
Krishnan, Venkata
影响因子：
5
作者：
Della Monica, Francesco;Kleij, Arjan W.
通讯作者：
Kleij, Arjan W.