  New fluoropnictides BaMnPnF with Pn = As, Sb, Bi, are synthesized by
stoichiometric reaction of elements with BaF\_2. The compounds crystallize in
the tetragonal P4/nmm (No. 129, Z = 2) space group, with the ZrCuSiAs-type
structure, as indicated by single crystal and powder X-ray diffraction results.
Electrical resistivity results indicate that Pn = As, Sb, and Bi are
semiconductors with band gaps of E\_g = 0.73 eV, E\_g = 0.48 eV and E\_g =
0.003 eV, respectively. Powder neutron diffraction reveals a G-type
antiferromagnetic order below T\_N = 338(1) K for Pn = As, and below T\_N =
272(1) K for Pn = Sb. Magnetic susceptibility increases with temperature above
100 K for all the materials. Density functional calculations also find
semiconducting antiferromagnetic compounds with strong in-plane and weaker
out-of-plane exchange coupling that may result in non-Curie Weiss behavior
above T\_N. There is strong covalency between Mn and pnictogen elements. The
ordered magnetic moments are 3.65(5) {\mu}B/Mn for Pn = As, and 3.66(3)
{\mu}B/Mn for Pn = Sb at 4 K, as refined from neutron diffraction experiments.
