Conjugated nanohoops have attracted much attention in recent years due to their unique optoelectronic properties. A more complex geometry, in which two nanohoops are covalently linked to form a so-cal...

Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintroni...

Herein, we report alternating boron dipyrromethene (BODIPY)-based donor-acceptor (D–A) carbon nanohoops, BCN-1 and BCN-2. These D–A nanohoops exhibit a narrow HOMO–LUMO gap, high molar extinction coef...

As two conjugated nanohoops covalently linked by a central unit, double nanohoops are a relatively new class of strained nanocarbons with different properties to single nanohoops. This review gives a...

Radially π-conjugated macrocycles with mixed aromatic and quinonoid units are considered. As a function of including an increasing number of aromatic units into a ring-like nanohoop with quinonoid uni...

Conjugated nanohoops have attracted much attention in recent years due to their unique optoelectronic properties. A more complex geometry, in which two nanohoops are covalently linked to form a so-cal...

We synthesized a series of carbon nanohoops, [n]CPP-BODIPY (n = 6, 7, and 9), by embedding boron dipyrromethene (BODIPY) dye into cycloparaphenylene scaffolds. Due to the unique size effect and intra...

Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintroni...

We designed, synthesized, and investigated a new chiral carbon nanohoop that formally incorporates a benzothiadiazole and [5]helicene units into the structure of [6]cycloparaphenylene. The connection...

Abstract. We report the synthesis of two ferrocene-tethered side-chain nanohoops, Fc[8]CPP-L and Fc[8]CPP-M, via a streamlined shotgun macrocyclization pro

Three pyrene-embedded nanohoops with distinct molecular symmetries were synthesized. Symmetry engineering discretizes the tunneling pathways, yielding three stable conductance states at room temperat...

Antiaromatic compounds are of great interest due to their narrow highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) gaps, high reactivity, and enhanced charge mobility, yet their role in single-molecule electronics is still not well understood. Using electrochemically controlled scanning tunneling microscopy break junction (ECSTM-BJ) measurements, we compared the energy-alignment-dependent conductance of the aromatic [10]cycloparaphenylene ([10]CPP) and the antiaromatic [4]cyclodibenzopentalene ([4]CDBP). While [10]CPP showed a single conductance state via the HOMO, [4]CDBP exhibited two distinct states involving both the HOMO and LUMO. Our analysis and DFT calculations attribute this dual-state behavior to unique anchoring mode and energy-level realignment within a narrow HOMO-LUMO gap. This property enables electron- and hole-dominated pathways that depend on the anchoring configuration and coexist at a fixed gate potential. This phenomenon, also observed in the [4]CDBP⊃C60 structure, highlights the potential of antiaromatic molecules for advanced molecular electronics.

Three pyrene-embedded nanohoops with distinct molecular symmetries were synthesized. Symmetry engineering discretizes the tunneling pathways, yielding three stable conductance states at room temperat...

Three pyrene-embedded nanohoops with distinct molecular symmetries were synthesized. Symmetry engineering discretizes the tunneling pathways, yielding three stable conductance states at room temperat...

Carbon nanohoops show how the spatial structure of a single molecular orbital affects electronic conductance.

Most nitrenes exist for mere nanoseconds; this one hangs around for days