Dolay\u0131s\u0131yla, ‘polarite kavram\u0131n\u0131n’ \u00f6nemini g\u00f6z \u00f6n\u00fcnde bulundurarak, bu makale polar ve polar olmayan molek\u00fcller hakk\u0131nda bilmeniz gereken her \u015feyi anlaman\u0131za yard\u0131mc\u0131 olmak amac\u0131yla yaz\u0131lm\u0131\u015ft\u0131r. \u00d6zetle (karbon dis\u00fclf\u00fcr (CS2)), simetrik do\u011frusal yap\u0131s\u0131 ve bile\u015fen atomlar\u0131n\u0131n benzer elektronegatifli\u011fi nedeniyle polar olmayan bir molek\u00fcld\u00fcr. Yukar\u0131daki analize dayanarak, karbon dis\u00fclf\u00fcr (CS2) polar olmayan bir molek\u00fcl olarak s\u0131n\u0131fland\u0131r\u0131l\u0131r. Molek\u00fcl\u00fcn tamam\u0131nda 20 de\u011ferlik elektronu vard\u0131r , 4 ba\u011f \u00e7ifti ve 6 yaln\u0131z elektron \u00e7ifti,.<\/p>\n
- \n
- Dipol momenti, birbirine ba\u011fl\u0131 iki atom aras\u0131ndaki elektrik y\u00fck\u00fc (Q) ve ba\u011f uzunlu\u011funun (r) \u00e7arp\u0131m\u0131d\u0131r.<\/li>\n
- Bu \u015fekilde (OCS molek\u00fcl\u00fcndeki t\u00fcm atomlar), serbest elektron \u00e7iftleri ve kimyasal ba\u011flar yoluyla, kendi kabuklar\u0131nda tam bir oktet elektronik konfig\u00fcrasyonuna ula\u015f\u0131rlar.<\/li>\n
- Her bir k\u00fck\u00fcrt atomu, merkezdeki karbon atomuyla \u00e7ift ba\u011f payla\u015farak \u00fc\u00e7 atomun da oktet kural\u0131n\u0131 tamamlar.<\/li>\n<\/ul>\n
Suda \u00e7\u00f6z\u00fcnebilen (hidrofilik olarak da adland\u0131r\u0131lan) molek\u00fcllere \u00f6rnek olarak NH3 ve CH3 verilebilir. Daha \u00f6nce de belirtti\u011fimiz gibi, H2O, asimetrik \u015fekli nedeniyle polar bir molek\u00fcld\u00fcr. Az \u00f6nce de g\u00f6rd\u00fc\u011f\u00fcm\u00fcz gibi \u2014 CCl4, simetrik tetrahedral \u015fekli ve geometrisi nedeniyle polar olmayan bir molek\u00fcld\u00fcr. Karbon tetraklor\u00fcr (CCl4) polar C-Cl ba\u011flar\u0131na sahiptir \u2014 ancak ayn\u0131 zamanda polar olmayan bir molek\u00fcle de \u00f6rnektir. Bunun nedeni, her bir NH ba\u011f\u0131n\u0131n, ba\u011fl\u0131 N ve H atomlar\u0131 aras\u0131nda 0,84 birimlik bir elektronegatiflik fark\u0131na sahip olmas\u0131d\u0131r.<\/p>\n
CS2’nin polar ba\u011flar\u0131 var m\u0131?<\/h2>\n
![\"best](\"https:\/\/static.cybersport.pl\/img\/490\/250\/fit\/wp-content\/uploads\/2025\/09\/genesis_collection_04.jpg\")
<\/p>\nBir molek\u00fcl\u00fcn polar m\u0131 yoksa apolar m\u0131 oldu\u011funu belirlemek i\u00e7in hem molek\u00fcler geometriyi hem de bireysel ba\u011flar\u0131n\u0131n polaritesini dikkate almal\u0131y\u0131z. CS2’de (do\u011frusal geometri boyunca z\u0131t polar ba\u011flar), dipol momentlerinin birbirini g\u00f6t\u00fcrmesine yol a\u00e7arak molek\u00fcl\u00fc apolar hale getirir. Molek\u00fcl do\u011frusal oldu\u011fundan ve ba\u011f polariteleri birbirini g\u00f6t\u00fcrd\u00fc\u011f\u00fcnden, CS2 apolar bir molek\u00fcld\u00fcr. Maddeyi y\u00fckl\u00fc plakalar aras\u0131na yerle\u015ftirin – polar molek\u00fcller plakalarda depolanan y\u00fck\u00fc art\u0131r\u0131r ve dipol momenti elde edilebilir (kapasitansla ilgilidir). \u00d6zetle (birden fazla ba\u011fa sahip molek\u00fcller i\u00e7in), yaln\u0131z \u00e7ift etkileri ve orbital etkile\u015fimleri, basit elektronegatiflik farklar\u0131na bask\u0131n gelebilir. Elektronegatiflik fark\u0131 ihmal edilebilir d\u00fczeydedir, ancak yaln\u0131z \u00e7ift ve ba\u011flay\u0131c\u0131 elektron da\u011f\u0131l\u0131m\u0131 yakla\u015f\u0131k 2 Debye’lik bir dipol momenti olu\u015fturur.<\/p>\n
Bunun nedeni \u2014 I2’nin polar olmayan bir molek\u00fcl olmas\u0131 ve CCl4’\u00fcn de polar olmamas\u0131d\u0131r; benzer benzeri \u00e7\u00f6zer kural\u0131na uyar. Bu simetrik d\u00fczenleme ve ba\u011f polaritelerinin birbirini n\u00f6trle\u015ftirmesi, polar olmayan bir molek\u00fcle yol a\u00e7ar. Sonu\u00e7 olarak, CS\u2082 polar olmayan \u00f6zellikler sergiler ve bu da onu polar molek\u00fcllere k\u0131yasla kimyasal etkile\u015fimlerde farkl\u0131 davranmaya iter. CS\u2082 polar olmayan bir molek\u00fcld\u00fcr \u00e7\u00fcnk\u00fc do\u011frusal \u015fekli, CS ba\u011flar\u0131ndan gelen dipollerin birbirini n\u00f6trle\u015ftirmesine olanak tan\u0131r. Bu makale (CS\u2082’nin neden dipol momentine sahip olmad\u0131\u011f\u0131n\u0131 a\u00e7\u0131kl\u0131yor), polar molek\u00fcllerle kar\u015f\u0131la\u015ft\u0131r\u0131yor ve kimya ve end\u00fcstrideki ger\u00e7ek d\u00fcnya etkilerini inceliyor. Her element \u00e7ifti i\u00e7in elektronegatiflik fark\u0131n\u0131 hesaplamak i\u00e7in periyodik tabloyu kullan\u0131n.<\/p>\n
Bir atomun kovalent ba\u011fda payla\u015f\u0131lan elektron \u00e7iftini \u00e7ekme e\u011filimi, elektronegatiflik olarak tan\u0131mlan\u0131r. Molek\u00fcller \u2014 y\u00fck da\u011f\u0131l\u0131m\u0131 asimetrik oldu\u011funda polar, simetrik oldu\u011funda ise apolar olarak adland\u0131r\u0131l\u0131r. Elektron payla\u015f\u0131m\u0131 ile birbirine ba\u011flanm\u0131\u015f ametallerden, yani karbon ve k\u00fck\u00fcrt elementlerinden olu\u015ftu\u011fu i\u00e7in CS2, saf bir kovalent bile\u015fik olarak kabul edilir. Bu s\u0131n\u0131fland\u0131rmaya, yap\u0131n\u0131n do\u011frusal simetrisi ve bile\u015fen atomlar\u0131n\u0131n benzerlik g\u00f6steren elektronegatiflikleri katk\u0131da bulunur.<\/p>\n
1796 y\u0131l\u0131nda Alman kimyager Wilhelm August Lampadius , 1772\u20131842,, piritin nemli k\u00f6m\u00fcrle \u0131s\u0131t\u0131lmas\u0131 sayesinde karbon dis\u00fclf\u00fcr\u00fc ilk kez sentezlenmi\u015ftir. Saf karbon dis\u00fclf\u00fcr \u2014 ho\u015f bir eter veya kloroform benzeri kokuya sahiptir; ancak ticari \u00f6rnekler genellikle sar\u0131 renkte olup, tipik olarak ho\u015f olmayan safs\u0131zl\u0131klarla kar\u0131\u015fm\u0131\u015ft\u0131r. Molek\u00fcllerde yaln\u0131z elektron \u00e7ifti-yaln\u0131z elektron \u00e7ifti veya yaln\u0131z elektron \u00e7ifti-ba\u011f elektron \u00e7ifti itmeleri bulunmad\u0131\u011f\u0131 i\u00e7in simetrik do\u011frusal bir \u015fekil olu\u015fur.<\/p>\n","protected":false},"excerpt":{"rendered":"
Merkezdeki karbon (C) atomunda herhangi bir serbest elektron \u00e7ifti bulunmamas\u0131 nedeniyle, molek\u00fcl\u00fcn \u015feklinde herhangi bir bozulma olmaz ve OCS molek\u00fcl\u00fc do\u011frusal bir molek\u00fcler \u015fekil al\u0131r. Bu \u015fekilde, molek\u00fcldeki t\u00fcm atomlar, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1446044","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"featured_image_url":[],"post_author":"webmaster","assigned_categories":"Uncategorized","_links":{"self":[{"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/posts\/1446044","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/comments?post=1446044"}],"version-history":[{"count":1,"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/posts\/1446044\/revisions"}],"predecessor-version":[{"id":1446048,"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/posts\/1446044\/revisions\/1446048"}],"wp:attachment":[{"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/media?parent=1446044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/categories?post=1446044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test24.mu.ac.ke\/index.php\/wp-json\/wp\/v2\/tags?post=1446044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}