Network hydrogen bonding in two new cocrystals sustained by 731-1731-1731-1, a tetrahedral hydrogen bond donor

Abstract

We report details of the synthesis and X-ray crystal structures of two new cocrystals that are sustained by the tetrahedral hydrogen bond donor [Mn(CO)3(μ3-OH)]4. [Mn(CO)3(μ3-OH)]4· 2(2,3,5,6-tetramethylpyrazine)·2H2O·2MeCN,a=21.503(3),b=12.674(1),c=17.318(2), β=102.15(2), C2/c,Dcalc=1.46 mg/m3,Z=4,4188 observed reflns,Rf=0.047,Rw=0.040; 1.[Mn(CO)3(μ3-OH)]4·4,4′-dipyridyl·2MeCn,a=16.942(6),b=12.395(2),c=18.790(6), β=114.88(3), C 2/c,Dcalc=1.60 mg/m3,Z=4,2430 observed reflns,Rf=0.043,Rw=0.051;2. 1 crystallizes as a 2-D grid, whereas2 forms 1-D strands. The hydrogen bond patterns exhibited by1 and2 are analyzed in the context of our earlier studies involving [Mn(CO)3(μ3-OH)]4 and other relevant literature.