<source id="iwx18"><tr id="iwx18"></tr></source>

      1. <noscript id="iwx18"><tbody id="iwx18"><noframes id="iwx18"></noframes></tbody></noscript>
      2. <noscript id="iwx18"></noscript>
        <bdo id="iwx18"></bdo>
          
          

          <noscript id="iwx18"><tbody id="iwx18"></tbody></noscript>
                    1. www国产精品视频_亚洲精品天堂_久久久久亚洲精品_国产又大又硬又粗_来一水AV@lysav

                      Technical articles技術(shù)文章
                      首頁 > 技術(shù)文章 >微波合成及共價有機結(jié)構(gòu)的提純

                      微波合成及共價有機結(jié)構(gòu)的提純

                       更新時間:2012-10-31 點擊量:1597

                            The chemistry of Covalent Organic Frameworks (COFs) is interesting yet underdeveloped. Typically COFs consist of low molecular weight elements such as boron, nitrogen, carbon, and oxygen, which form strong, covalent bonds similar to those in graphite and diamond. This networking imparts unique characteristics, among them high thermal stability sometimes up to 600 oC. Unlike hydrocarbon organic frameworks, heteroatomic frameworks have greater flexibility in their uses because they can be functionalized for gas storage devices, as photonics, and as catalysts. Original work conducted by Professor Omar Yaghi and co-workers details the synthesis of crystalline COFs consisting of carbon, boron, and oxygen, as shown in Scheme 1. Dehydration of diboronic acid (BDBA) and hexahydroxy triphenylene (HHTP) in mesitylene/dioxane at 120 oC for 72 h furnished COF-51, while self-condensation of tetra(4-dihydroxyborylphenyl)methane (TBPM) and its silane derivative TBPS by heating in mesitylene/dioxane at 85 oC for 96 h produced COF-102.2


                       

                      更多詳情,請培安公司:
                      :北京: 上海:  成都: 廣州:
                      : sales@pynnco.comwww.pynnco.com
                      www国产精品视频_亚洲精品天堂_久久久久亚洲精品_国产又大又硬又粗_来一水AV@lysav
                      <source id="iwx18"><tr id="iwx18"></tr></source>

                        1. <noscript id="iwx18"><tbody id="iwx18"><noframes id="iwx18"></noframes></tbody></noscript>
                        2. <noscript id="iwx18"></noscript>
                          <bdo id="iwx18"></bdo>
                            
                            

                            <noscript id="iwx18"><tbody id="iwx18"></tbody></noscript>
                                      1. 遂川县| 吉安县| 永和县| 灵宝市| 兴和县| 治多县| 土默特右旗| 九台市| 淳化县| 西峡县| 尼勒克县| 慈利县| 武强县| 天门市| 子洲县| 额敏县| 方正县| 射阳县| 法库县| 宁安市| 保德县| 康马县| 龙州县| 蕉岭县| 建湖县| 那曲县| 抚顺市| 巨野县| 舞阳县| 合山市| 洛扎县| 沙坪坝区| 南宫市| 双城市| 禄劝| 宁强县| 盐边县| 泰宁县| 弋阳县| 阜康市| 日喀则市|