【作者】 夏海平；

【Author】 Haiping Xia;Department of Chemistry,Xiamen University;

【机构】 厦门大学化学系；

【摘要】 碳是最基本的化学元素之一。然而,在无机化学中,碳通常作为配角。全碳配位的多齿配合物构筑是个挑战。我们发展了由多炔碳链螯合过渡金属一步构筑全碳多齿配合物的高效方法[1-2]。该方法合成条件温和(甚至可以在有水、有氧的气氛中室温操作),且对金属源具有很好的通用性(甚至可以以无机盐为金属源)。我们籍此方法成功合成了锇、钌、铑、铱四种金属的全碳多齿配合物,并把这类配合物称为碳龙配合物,其结构特征是:分子内含多个(三个及以上)金属-碳σ键。碳龙配合物均为全新的π共轭体系,均具有芳香性,均具有较高的热、空气、水稳定性。有别于传统有机π共轭体系,由于过渡金属参与产生了dπ-pπ共轭,这类全新的非经典配合物具有诸多奇特的光、电、磁性能。可以预见:随着碳元素在配位化学中作用不断被重新认识,无机化学与有机化学的界限将日趋模糊。更多还原

【Abstract】 Carbon is one of the most fundamental elements in chemistry, yet in polydentate chelates, carbon is rarely act as binding atoms. The construction of all-carbon-ligated polydentate chelates remains challenging. Recently, we developed an efficient method to synthesize chelates with carbon exclusively as binding atoms from multiyne chains. In this method, multiyne chains are capable of directly reacting with simple metal complexes or even inorganic salts under mild conditions, yielding aromatic chelates with three or more metal-carbon σ bonds. These chelates are termed as carbolong complexes. What’s more, this method is general to both organic and metal sources. Carbolong complexes with metal centers of Os, Ru, Rh and Ir have been achieved, including the unprecedented cyclic ruthenium carbyne complexes and the first examples of free rhoda-aromatics.更多还原