Abstract A two-dimensional magnetic carbon allotrope of hexagonally arranged fused pentagons is theoretically predicted through the copolymerization benzene and spiro[4.4]nonatetraene. The hexagonal spiro-graphene has ferromagnetic antiferromagnetic phases as its respective ground metastable states, two states being almost degenerate in energy because Dirac band at Fermi level narrow. polarized...

The perovskite solar cells employing cost-effective FF-OMeTPA exhibit a PCE of 21.82%, which is higher than the conventional spiro-OMeTAD.

A 13-step synthesis of (+)-cyanthiwigin-AC (2) from (+)-Hajos-Parrish ketone derivative 8b and dimesylate 9c employing deconjugative spiro-bis-alkylation strategy is described. [reaction: see text].

A spiro[5.5]ketal library embodying the core structure of numerous biologically active natural products was synthesized employing a double intramolecular hetero Michael reaction as a key transformation.

Efficient asymmetric synthesis of spiro-2(3H)-furanones was achieved via phase-transfer-catalyzed highly enantioselective alkynylation of cyclic β-keto esters with hypervalent iodine reagents.

Spiro compounds are widely used as host matrices in organic light‐emitting diodes (OLEDs). Here, inspired by the recent developments thermally activated delayed fluorescence (TADF) materials, potential a light emitter of two spiro‐configured semi‐conductors is investigated, constructed association quinolinophenothiazine (QPTZ) or indoloacridine (IA) electron‐rich fragment and diphenylphosphine ...

Addressing the stability issue in perovskite solar cells (PSCs) is a crucial step for commercialization purposes. Finding novel and stable hole-transporting layer (HTL) one of most effective strategies to solve this problem. Herein, new polymeric HTL, namely poly{2,7-[(5,5-bis(3?,7?-dimethyloctyl)-5 H-1,8-dithia-as-indacenone]-alt-5,5-[5?,6?-bis(octyloxy)-4?,7?-di-2-thienyl-2?,1?,3?-benzothiadi...

Abstract Regio- and stereoselective methods for the synthesis of 6′-trifluoro(trichloro)methyl substituted spiro[acenaphthylene-1,11′-chromeno[3,4-a](thia)pyrrolizidin]-2-ones spiro[acenaphthylene-1,12′-chromeno[3,4-a]indolizidin]-2-ones have been developed based on three-component reaction 3-nitro-2-trifluoro(trichloro)methyl-2H-chromenes with azomethine ylides generated in situ from acenaphth...