Metallacycloprop-1-ene and metallacycloprop-2-ene complexes are the smallest
unsaturated metallacycles, and have attracted continuing attention for their importance in …

Azulene-based conjugated systems are of great interests due to their unusual structures and
photophysical properties. Incorporation of a transition metal into azulene skeleton presents …

Tuning the spin state of metal carbynes, which have broad applications in organic synthesis
and material science, presents a formidable challenge for modern chemists as the strong …

The σ bond is an important concept in chemistry, and the metal–carbon (M–C) σ bond in
particular is a central feature in organometallic chemistry. Synthesis of stable complexes …

Comprehensive Summary Metallacyclopentadienes play a vital role in transition‐metal
mediated and catalyzed cycloaddition reactions of alkynes. Though versatile reactions of …

In recent years, the field of organometallic chemistry has made a great progress and diverse
types of metallaaromatics have successively been reported. In those studies, incorporation …

Carbolong complexes are one of the primary types of metallaaromatics, and they include
metallapentalynes and metallapentalenes. A series of 7C-10C and 12C-carbolong …

The first chlororuthenacyclopentatrienes have been realized by the reactions of RuCl2
(PPh3) 3 with o-phenyldiyne derivatives in the presence of excess HCl. The structures of the …

Iridium centers of [Ir (μ-Cl)(C8H14) 2] 2 (1) activate the Cβ (sp2)–H bond of
benzylideneacetone to give [Ir (μ-Cl){κ2-C, O-[C (Ph) CHC (Me) O]} 2] 2 (2), which is the …

Azulene-fused acenes demonstrate enhanced stability, unique aromaticity, and distinctive
photophysical properties, rendering them significant in organic electronics. In the present …