Organosodium, organopotassium, organorubidium and organocaesium compounds are all mostly ionic and are insoluble (or nearly so) in nonpolar solvents.
ɔːɹɡˌænoʊsˈoʊdiəm, ɔːɹɡˌænoʊpətˈæsiəm, ɔːɹɡˌænoʊɹuːbˈɪdiəm ænd ɔːɹɡˌænoʊsˈiːsiəm kˈɑːmpaʊndz ɑːɹ ˈɔːl mˈoʊstli aɪˈɑːnɪk ænd ɑːɹ ɪnsˈɑːljuːbəl ɔːɹ nˌɪɹli sˌoʊ ɪn nˌɑːnpˈoʊlɚ sˈɑːlvənts.