V\u011bdci poprv\u00e9 zachytili sn\u00edmky chemick\u00e9 reakce pomoc\u00ed mikroskopu. Tento pr\u016flomov\u00fd objev n\u00e1m umo\u017e\u0148uje sledovat, jak z\u00e1kladn\u00ed stavebn\u00ed kameny hmoty vz\u00e1jemn\u011b reaguj\u00ed v re\u00e1ln\u00e9m \u010dase.<\/p>\n\n
Doty\u010dnou chemik\u00e1li\u00ed je oligo-(fenylen-1,2-etinyen). P\u0159i zah\u0159\u00e1t\u00ed doch\u00e1z\u00ed k p\u0159eskupen\u00ed jeho molekul\u00e1rn\u00ed struktury. Pomoc\u00ed v\u00fdkonn\u00e9ho mikroskopu mohli v\u011bdci toto p\u0159eskupen\u00ed pozorovat a zachytit \u00fa\u017easn\u00e9 sn\u00edmky chemick\u00fdch vazeb, kter\u00e9 se na n\u011bm pod\u00edlej\u00ed.<\/p>\n\n
Chemick\u00e9 vazby jsou s\u00edly, kter\u00e9 dr\u017e\u00ed atomy pohromad\u011b a vytv\u00e1\u0159ej\u00ed molekuly. Dva hlavn\u00ed typy chemick\u00fdch vazeb jsou iontov\u00e9 vazby a kovalentn\u00ed vazby. U iontov\u00fdch vazeb jeden atom ukradne elektron jin\u00e9mu atomu, \u010d\u00edm\u017e vznikne kladn\u00fd a z\u00e1porn\u00fd iont, kter\u00e9 se navz\u00e1jem p\u0159itahuj\u00ed. U kovalentn\u00edch vazeb si atomy sd\u00edlej\u00ed jeden, dva nebo t\u0159i p\u00e1ry elektron\u016f a vytvo\u0159\u00ed mezi sebou silnou vazbu.<\/p>\n\n
Sn\u00edmky zachycen\u00e9 mikroskopem ukazuj\u00ed chemick\u00e9 vazby jako tenk\u00e9 \u010d\u00e1ry, p\u0159ipom\u00ednaj\u00edc\u00ed ty\u010dov\u00e9 obr\u00e1zky b\u011b\u017en\u011b pou\u017e\u00edvan\u00e9 v diagramech organick\u00e9 chemie. To poskytuje hmatateln\u00e9 zn\u00e1zorn\u011bn\u00ed molekul\u00e1rn\u00ed struktury, kter\u00e1 byla d\u0159\u00edve p\u0159\u00edstupn\u00e1 pouze prost\u0159ednictv\u00edm teoretick\u00fdch model\u016f.<\/p>\n\n
V chemii je tvar molekuly stejn\u011b d\u016fle\u017eit\u00fd jako jej\u00ed chemick\u00e9 slo\u017een\u00ed. Tvar ur\u010duje vlastnosti molekuly a zp\u016fsob, jak\u00fdm interaguje s jin\u00fdmi molekulami. Nap\u0159\u00edklad benzenov\u00fd kruh, z\u00e1kladn\u00ed k\u00e1men organick\u00e9 chemie, m\u00e1 jedine\u010dn\u00fd \u0161estihrann\u00fd tvar, kter\u00fd mu prop\u016fj\u010duje zvl\u00e1\u0161tn\u00ed vlastnosti.<\/p>\n\n
Zobrazovac\u00ed technika pou\u017eit\u00e1 k zachycen\u00ed t\u011bchto sn\u00edmk\u016f poskytuje v\u011bdc\u016fm neb\u00fdval\u00fd pohled do chemick\u00fdch reakc\u00ed. P\u0159\u00edm\u00fdm pozorov\u00e1n\u00edm tvaru z\u00fa\u010dastn\u011bn\u00fdch molekul mohou v\u011bdci z\u00edskat hlub\u0161\u00ed porozum\u011bn\u00ed toho, jak tyto reakce prob\u00edhaj\u00ed.<\/p>\n\n
Tato nov\u00e1 schopnost vizualizovat chemick\u00e9 reakce otev\u00edr\u00e1 vzru\u0161uj\u00edc\u00ed mo\u017enosti do budoucna. Mohla by pomoci v\u011bdc\u016fm navrhovat nov\u00e9 slou\u010deniny a materi\u00e1ly se specifick\u00fdmi vlastnostmi, co\u017e by vedlo k pokroku v oblastech, jako je medic\u00edna, energetika a technologie.<\/p>\n\n
Schopnost sledovat chemick\u00e9 reakce na atomov\u00e9 \u00farovni je v\u00fdznamn\u00fdm krokem vp\u0159ed v oboru chemie. V\u011bdc\u016fm poskytuje v\u00fdkonn\u00fd n\u00e1stroj pro zkoum\u00e1n\u00ed z\u00e1kladn\u00edch proces\u016f hmoty a vytv\u00e1\u0159en\u00ed nov\u00fdch materi\u00e1l\u016f, kter\u00e9 utv\u00e1\u0159ej\u00ed n\u00e1\u0161 sv\u011bt. S pokra\u010duj\u00edc\u00edm technologick\u00fdm pokrokem m\u016f\u017eeme o\u010dek\u00e1vat je\u0161t\u011b v\u00edce pr\u016flomov\u00fdch objev\u016f v oblasti molekul\u00e1rn\u00edho zobrazov\u00e1n\u00ed, kter\u00e9 zm\u011bn\u00ed na\u0161e ch\u00e1p\u00e1n\u00ed chemie.<\/p>","protected":false},"excerpt":{"rendered":"
Chemie na atomov\u00e9 \u00farovni Mikroskopick\u00fd pohled na chemick\u00e9 reakce V\u011bdci poprv\u00e9 zachytili sn\u00edmky chemick\u00e9 reakce pomoc\u00ed mikroskopu. Tento pr\u016flomov\u00fd objev n\u00e1m umo\u017e\u0148uje sledovat, jak z\u00e1kladn\u00ed stavebn\u00ed kameny hmoty vz\u00e1jemn\u011b reaguj\u00ed…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3804],"tags":[20758,20757,218,4875,20756,99,4876],"class_list":["post-15586","post","type-post","status-publish","format-standard","hentry","category-chemistry","tag-atomic-interactions","tag-chemical-bonds","tag-chemistry","tag-microscopy","tag-molecular-structure","tag-lifescienceart","tag-science-photography"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=15586"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15586\/revisions"}],"predecessor-version":[{"id":15587,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15586\/revisions\/15587"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=15586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=15586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=15586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}