摘要:
Photochromic tetrahydroindolizines (THIs) bearing dihydroisoquinoline derivatives as heterocyclic bases and central fluorene goups have been synthesized via different chemical and photochemical pathways. Three alternative pathways for the synthesis of the target photochromic THI-based pyridazinopyrrolo [1,2-b] isoquinolines via in situ trapping with hydrazine hydrate are also provided. High product yields are obtained using different Sonogashira-mediated coupling reactions provided herein. Low temperature multichannel UV-vis and flash photolysis techniques were used to detect the photochromic and kinetic properties of the synthesized system.
摘要:
A gold/titanium nanotube-multiwalled carbon nanotube composite (Au/TNT-MWCNT) is presented. The gold composition comprises at least 3 % weight of the nanotube composite based on the total weight of the nanotube composite and the gold composition is located in at least one of the wall of the titanium nanotube and the wall of the multiwalled carbon nanotube. Photocatalytic oxidation of neat cyclohexane (CHA) with H 2 O 2 as an oxidant was carried out. Au/TNT-MWCNT catalysts promoted partial CHA oxidation with high conversion (6-7.5%) and selectivity (60-75%) to cyclohexanone.
摘要翻译:介绍了金/钛纳米管多壁碳纳米管复合材料(Au / TNT-MWCNT)。 金组合物包含基于纳米管复合材料的总重量的至少3重量%的纳米管复合材料,并且金组合物位于钛纳米管的壁和多壁碳纳米管的壁中的至少一个中。 进行了以H2O2为氧化剂的纯环己烷(CHA)的光催化氧化。 Au / TNT-MWCNT催化剂以高转化率(6-7.5%)和选择性(60-75%)促进部分CHA氧化成环己酮。