New surface allotropes of carbon

The simplest negatively curved (schwartzene) surface allotrope of carbon, C32-trousers, is introduced and modeled. Restricted Hartree-Fock calculations show that C32-trousers is a stable unit and also demonstrate the viability of several related schwartzenes. In contrast to many schwartzene structures proposed earlier, C32-trousers is a reasonable target for organic synthesis.