Cyclic hybrids consisting of alternately linked 2,5-pyrrolylene and 3,4-thienylene units were synthesized by Suzuki–Miyaura cross-coupling reaction of 3,4-diborylthiophene with 3,4-bis(5-bromopyrrol-2-yl)thiophene with the RuPhos-PdCl precatalyst in low yields. The same coupling reaction with Boc-protected 3,4-bis(5-bromopyrrol-2-yl)thiophene afforded a tetrameric cyclic hybrid selectively in 11% yield
shaped, contracted porphyrinoids belong to a group of molecules where the geometry significantly modifies the observed electronic properties. The need for a controllable, effective, and widely applicable approach to triphyrins drives extensive research towards macrocyclic materials that act as potential controlling motifs by switching their aromaticity. Two isomeric thiophene‐fused triphyrins(2.1.1) were
porphyrin(2.1.2.1) macrocycle results in the alteration of the molecular geometry to a more planarized structure. Dithienoporphyrin(2.1.2.1) is found to act as a ligand that can form metal complexes with nickel(II), copper(II), and palladium(II) ions. The molecularstructures of the dithienoporphyrin(2.1.2.1) metal complexes exhibited bent molecular conformations. The red-shifted absorption, reversible redox
以两种二(1H-吡咯并-2-基)噻吩为结构单元,两种芳基醛在弱酸催化条件下制备了四种异构的二噻吩并卟啉(2.1.2.1)。通过核磁共振光谱、X 射线衍射、紫外-可见吸收光谱、电化学测量和理论计算研究了二噻吩并卟啉(2.1.2.1) 的分子构象和光学和电子性质。[2,3]F 5 TP的晶体结构在二苯并-/二萘并卟啉中双吡啶单元的两个平面之间的角度最大(2.1.2.1)。这一结果表明,将噻吩亚基并入卟啉 (2.1.2.1) 大环会导致分子几何结构发生变化,从而形成更平面化的结构。Dithienoporphyrin(2.1.2.1) 被发现充当配体,可以与镍 (II)、铜 (II) 和钯 (II) 离子形成金属络合物。dithienoporphyrin(2.1.2.1) 金属配合物的分子结构呈现弯曲的分子构象。红移吸收、可逆氧化还原过程和理论计算表明,dithienoporphyrin(2.1.2