FOR 1175: Unconventional Approaches to the Activation of Dihydrogen

在瑞士和德国的两国合作中，这个项目涉及氢化学的基本方面和发展，重点是无金属和离子氢化催化剂的及时方面，以及H-H键的异质裂解。氢化学最近因其作为清洁能源载体的潜在作用以及与化学氢储存的联系而变得越来越重要。选择了一种全新的氢化学基础研究方法来解开氢转化的剩余化学谜团。几十年来，氢的研究主要集中在具有均相裂解氢特性的Wilkinson过渡金属催化剂的开发上。这种化学的主要缺点是使用贵金属催化剂，以及倾向于与非极性不饱和分子反应。这些缺点被认为是通过利用最近出现的通过异源分解氢气的氢化方面来克服的，这些氢化被累积地表示为离子氢化，并且是过渡金属或主族元素(不含金属)催化的。在此项目中，还研究了在同时发生双氢转移的基础上进行的极性转移氢化反应。寻求氢化学的综合基本方法，包括离子氢化和极性转移氢化的发展，最好是催化形式，重点是无金属、非贵金属或非常有效的贵金属催化剂。广泛寻找与氢相关的新催化剂为瑞士和德国的合作搭建了化学平台。结合氢气作为清洁未来能源载体的愿景以及氢气在化学储氢材料中的反应性，这一两国合作项目具有相当大的社会意义。该项目将有助于对氢气化学的最终深刻理解，探索极性和无金属氢以及与氢相关的催化剂缺失的方面。各自的新见解被认为为未来氢技术的化学发展奠定了基础。

In a binational Swiss-German cooperation this project addresses fundamental aspects of hydrogen chemistry and developments emphasising the timely aspects of metal-free and ionic hydrogenation catalyses proceeding with heterolytic splitting of the H-H bond. Hydrogen chemistry has recently gained importance in conjunction with its potential role as a clean energy carrier and its connection to chemical hydrogen storage. A conceptually new, basic research approach to hydrogen chemistry was chosen to solve the remaining chemical enigma of hydrogen transformations. For decades hydrogen research focussed mainly on developments of Wilkinson transition metal catalyses with the characteristics of a homolytic splitting of H2. Major drawbacks of this chemistry were the use of noble metal catalysts and the preference for reactions with unpolar unsaturated molecules. These drawbacks are thought to be overcome by utilisation of recently emerged aspects of hydrogenations splitting H2 by heterolysis, which are cumulatively denoted as ionic hydrogenations and are transition metal or main group element (metal-free) catalysed. Polar transfer hydrogenations, operating on the basis of simultaneously occurring double H transfers, are also studied in this project. A comprehensive fundamental approach to hydrogen chemistry is sought consisting of developments for ionic hydrogenations and polar transfer hydrogenations, preferably in catalytic form with emphasis on metal-free, non-noble metal or very efficient noble metal catalyses. A broad search for new hydrogen related catalyses builds the chemical platform for this Swiss-German cooperation. In conjunction with the vision of dihydrogen as a clean future energy carrier and the involvement of dihydrogen reactivity in chemical hydrogen storage materials, this bi-national collaborative project attains considerable social relevance. The project would like to contribute to an ultimate profound understanding of dihydrogen chemistry exploring the missing facets of polar and metal-free hydrogen and hydrogen related catalyses. Respective new insights are thought to lay the grounds for future chemical developments in hydrogen technology.