▁grew ▁up ▁on ▁the ▁farm ▁with ▁her ▁three ▁older ▁sib lings , ▁Elli , ▁Rose ▁and ▁Paul . ▁In ▁ 1 8 9 0 , ▁her ▁mother ▁died ▁of ▁cancer ; ▁while ▁Elli ▁and ▁her ▁husband ▁Sieg fried ▁stayed ▁at ▁the ▁farm , ▁Clara ▁moved ▁with ▁her ▁father ▁to ▁Bres lau . ▁ ▁Im mer w ahr ▁studied ▁at ▁the ▁University ▁of ▁Bres lau , ▁in ▁ 1 9 0 0 ▁att aining ▁her ▁degree ▁and ▁a ▁Ph D ▁in ▁chem istry ▁under ▁Richard ▁Ab eg g . ▁Her ▁dis sert ation ▁was ▁entitled ▁Beit rä ge ▁zur ▁L ös lich ke its best imm ung ▁schwer l ös licher ▁Sal ze ▁des ▁Que cks il bers , ▁K up fers , ▁Ble is , ▁Cad m iums ▁und ▁Z inks ▁( Cont ribution s ▁to ▁the ▁Sol ub ility ▁of ▁S light ly ▁Sol ub le ▁Sal ts ▁of ▁Mercur y , ▁Co pper , ▁Le ad , ▁Cad m ium , ▁and ▁Z inc ). ▁She ▁was ▁the ▁first ▁woman ▁Ph . D . ▁at ▁the ▁University ▁of ▁Bres lau ▁and ▁received ▁the ▁design ation ▁mag na ▁cum ▁la ude . ▁ ▁Mar riage ▁and ▁work ▁Im mer w ahr ▁married ▁Fritz ▁Hab er ▁in ▁ 1 9 0 1 , ▁four ▁years ▁after ▁she ▁had ▁converted ▁to ▁Christian ity ▁in ▁ 1 8 9 7 . ▁ ▁Due ▁to ▁soci etal ▁expect ations ▁that ▁a ▁married ▁woman ' s ▁place ▁was ▁in ▁the ▁home , ▁her ▁ability ▁to ▁conduct ▁research