2025年2月21日 · In this study, we report two types of 1D spin-1/2 spin chain (chain 1 and chain 2) by on-surface synthesis based on antiaromatic diaza-hexa- peri -hexabenzocoronene (diaza-HBC) as the...

2025年2月28日 · We synthesized a unit of the diazahexabenzocoronene (N 2 HBC) molecule (32) and N 2 HBC chains that present a perfect alignment of spin S = 1/2 units represented by the simple Heisenberg Hamiltonian with exchange coupling J between neighboring units

使用扫描隧道显微镜、非接触式原子力显微镜、密度泛函理论计算和量子自旋模型的组合研究证实了二氮杂-HBC 链的结构并阐明了它们的磁性，通过从二氮杂-HBC 核心到 Au（111） 衬底的电子捐赠，每个单位具有 S = 1/2 自旋。

2025年3月15日 · Hydroxybutyl chitosan (HBC), a derivative of chitosan, exhibits biocompatibility and temperature-sensitive properties, rendering it utilized in tissue engineering, and biomedical science. Currently, HBC is mainly prepared based on …

Here, we demonstrate the successful on-surface synthesis of spin-1/2 antiferromagnetic Heisenberg chains with parity-dependent magnetization based on antiaromatic diaza-hexa- peri -hexabenzocoronene (diaza-HBC) units.

2025年2月28日 · We found that a given antiferromagnetic coupling J value between first neighbors in the entangled quantum states is responsible for the quantum phenomena, strongly relating to their parities of the...

Download scientific diagram | On-surface synthesis of diaza-HBC chains. (a) Scheme of the synthesis of diaza-HBC chain 1 and chain 2 starting from precursor 2 and 3.

2024年7月29日 · Here, we demonstrate the successful on-surface synthesis of spin-1/2 antiferromagnetic Heisenberg chains with parity-dependent magnetization based on antiaromatic...

Here, we demonstrate the successful on-surface synthesis of spin-1/2 antiferromagnetic Heisenberg chains with parity-dependent magnetization based on antiaromatic diaza-hexa-peri-hexabenzocoronene (diaza-HBC) units.

2020年7月8日 · Thin films of four discotic liquid-crystalline hexa-<i>peri</i>-hexabenzocoronene (HBC) derivatives carrying three diacetylenic side chains and three saturated alkyl chains at different positions around the central HBC core were prepared on phenyltrichlorosilane-modified SiO₂ substrate by …