Inorganic Chemistry, Vol.43, No.24, 7564-7566, 2004
Multiple coordination geometries supported by methylene-linked guanidines
The methylene-linked bicyclic guanidine based on the 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine (hppH) framework provides a versatile platform able to support trigonal-planar, tetrahedral, and square-planar metal centers.