Boron Inotsiva Simbi: Element Forms Complexes NeOlefins
09/19/2025
Kubvisa simbi dzinorema dzine chepfu uye dzinodhura muindasitiri yemakemikari: Chinyorwa chitsva kubva kuYunivhesiti yeWürzburg Chemistry chinonongedzera nzira yekufambira mberi.
Maitiro ekubatanidza echinyakare emaolefin ane simbi (kuruboshwe) uye maitiro ekubatanidza maolefin achangobva kuwanikwa aneboron(rudyi). (Mufananidzo: Rian Dewhurst / Universität Würzburg)
Chikwata chinotungamirwa napurofesa wekemesitiri Holger Braunschweig paYunivhesiti yeWürzburg chiri kuferefeta hunhu hwe'metal-mimetic' hwezvinhu zvikuru zveboka zvakaita seboron. Vakaratidza kuti pasi pemamwe mamiriro ezvinhu, boron inogona kutevedzera maitiro ekuita kwesimbi pasina kuva nechepfu kana kudhura sesimbi.
Aya ndiwo mamiriro ekuburitswa kutsva neboka reBraunschweig mujenari reNature Chemistry. Chinyorwa ichi chinoratidza kuti boron inogonawo kugadzira zvinonzi π complexes neolefins, izvo zvakafanana muhunhu hwazvo uye maitiro azvo necomplexes dze transition metals neolefins. Makomikari ekupedzisira aya ndiwo ari pakati pemaitiro mazhinji makuru e catalytic muindasitiri.
Kufuridzirwa kweVamwe Vaongorori
'Kuwanikwa kwedu kunovhura nzvimbo itsva yetafura yeperiodic ye π coordinate chemistry - kusanganisira mukana wekushandisa zvinhu zvikuru zveboka sezvinhu zvinokonzeresa mashandiro emahydrocarbon asina kuguta,' anodaro Holger Braunschweig.
Macomplex e boron-olefin π akagadzirwa ne postdoc Dr Maximilian Michel naDr Marco Weber. Nyanzvi dzemakemikari dzeWürzburg dzinotarisira kuti kuwanikwa kwavo kuchakurudzira vamwe vaongorori kuti vafambise miganhu yekemikari yeboka guru uye vawane mamwe mashandisirwo e boron kana zvimwe zvinhu zveboka guru.
Kutsiva Simbi Dzinorema Nezvinhu Zvikuru zveMapoka
"Mukufamba kwenguva, chinangwa chedu chikuru ndechekutsiva simbi dzinorema dzine chepfu uye dzinodhura mumaindasitiri nezvinhu zvikuru," anodaro Holger Braunschweig.
Tevere, timu inoda kugadzirisa boron-olefin π complexes kuitira kuti maitiro avo anyatsofanana neemacomplex esimbi anozivikanwa.
Vabatsiri neVatsigiri
Chikwata cheWürzburg chakaburitsa zvabuda izvi pamwe chete nemapoka akatungamirwa naProfessor Arumugam Jayaraman wekuYunivhesiti yeNevada muLas Vegas (USA) naProfessor Alfredo Vargas wekuYunivhesiti yeSussex muBrighton (UK).
Basa iri rakatsigirwa nemari neGerman Research Foundation, Alexander von Humboldt Foundation pamwe neNatural Science and Engineering Research Council yeCanada.
Bhuku
Kemikari yeOlefin π-coordinate pa low-oxidation-state boron. Nature Chemistry, 19 Gunyana 2025, DOI 10.1038/s41557-025-01952-3