an organometallic polymer having the following moiety : ## str1 ## is disclosed . r 1 and r 2 are independently selected from the group of h , alkyl having 30 or fewer carbons , alkenyl having 30 or fewer carbons , and aromatic having one to ten rings ; n = 0 - 30 ; p = 0 - 30 ; and m is a metal selected from the group consisting of sn , ge , pb , hg , ni , pd , pt , cr , fe , co , cu , and zn . most preferably , m is sn , r 1 and r 2 are n - butyl , n is 3 , and p is 3 . a preferred antibacterial / antifungal composition may be formed by combining the polymer with a suitable carrier .