Cu2C15H15Br2(NO)3 crystallizes in the orthorhombic Pnna space group. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 3-coordinate geometry to two equivalent N(1) and one Br(1) atom. Both Cu(1)-N(1) bond lengths are 1.92 Å. The Cu(1)-Br(1) bond length is 2.43 Å. In the second Cu site, Cu(2) is bonded in a distorted bent 150 degrees geometry to one N(2), one N(3), and one Br(2) atom. The Cu(2)-N(2) bond length is 1.92 Å. The Cu(2)-N(3) bond length is 1.91 Å. The Cu(2)-Br(2) bond length is 2.73 Å. In the third Cu site, Cu(3) is bonded in a distorted trigonal planar geometry to one Br(2) and two equivalent Br(3) atoms. The Cu(3)-Br(2) bond length is 2.52 Å. Both Cu(3)-Br(3) bond lengths are 2.34 Å. There are fifteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.46 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one H(1) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(1) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(10), one C(2), and one C(4) atom. The C(3)-C(10) bond length is 1.47 Å. The C(3)-C(4) bond length is 1.40 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(2) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(2) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(13), one C(4), and one C(6) atom. The C(5)-C(13) bond length is 1.46 Å. The C(5)-C(6) bond length is 1.40 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(3) atom. The C(6)-H(3) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one N(1), and one O(1) atom. The C(7)-N(1) bond length is 1.30 Å. The C(7)-O(1) bond length is 1.35 Å. In the eighth C site, C(8) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(4), and one H(5) atom. The C(8)-N(1) bond length is 1.48 Å. The C(8)-H(4) bond length is 1.10 Å. The C(8)-H(5) bond length is 1.10 Å. In the ninth C site, C(9) is bonded in a distorted trigonal non-coplanar geometry to two equivalent H(6,7) and one O(1) atom. Both C(9)-H(6,7) bond lengths are 1.10 Å. The C(9)-O(1) bond length is 1.46 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(2), and one O(2) atom. The C(10)-N(2) bond length is 1.30 Å. The C(10)-O(2) bond length is 1.35 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal non-coplanar geometry to one N(2), one H(8), and one H(9) atom. The C(11)-N(2) bond length is 1.48 Å. The C(11)-H(8) bond length is 1.10 Å. The C(11)-H(9) bond length is 1.10 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal non-coplanar geometry to one H(10), one H(11), and one O(2) atom. The C(12)-H(10) bond length is 1.10 Å. The C(12)-H(11) bond length is 1.10 Å. The C(12)-O(2) bond length is 1.47 Å. In the thirteenth C site, C(15) is bonded in a distorted trigonal non-coplanar geometry to one H(14), one H(15), and one O(3) atom. The C(15)-H(14) bond length is 1.10 Å. The C(15)-H(15) bond length is 1.10 Å. The C(15)-O(3) bond length is 1.47 Å. In the fourteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(3), and one O(3) atom. The C(13)-N(3) bond length is 1.30 Å. The C(13)-O(3) bond length is 1.35 Å. In the fifteenth C site, C(14) is bonded in a distorted trigonal non-coplanar geometry to one N(3), one H(12), and one H(13) atom. The C(14)-N(3) bond length is 1.48 Å. The C(14)-H(12) bond length is 1.10 Å. The C(14)-H(13) bond length is 1.10 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(7), and one C(8) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cu(2), one C(10), and one C(11) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one Cu(2), one C(13), and one C(14) atom. There are fourteen inequivalent H sites. In the first H site, H(15) is bonded in a single-bond geometry to one C(15) atom. In the second H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fifth H site, H(4) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the seventh H site, H(6,7) is bonded in a single-bond geometry to one C(9) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(11) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(11) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(12) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(12) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(14) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(14) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(15) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one C(7) and one C(9) atom. In the second O site, O(2) is bonded in a water-like geometry to one C(10) and one C(12) atom. In the third O site, O(3) is bonded in a water-like geometry to one C(13) and one C(15) atom. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a single-bond geometry to one Cu(1) atom. In the second Br site, Br(2) is bonded in a 3-coordinate geometry to one Cu(3) and two equivalent Cu(2) atoms. In the third Br site, Br(3) is bonded in a distorted single-bond geometry to one Cu(3) atom. Linkers: 4 Br[Cu](N1CCO[C]1c1cc(C2=NCCO2)cc(C2=NCCO2)c1)N1CCO[C]1c1cc(C2=NCCO2)cc(C2=NCCO2)c1. Metal clusters: 4 [Cu][Cu]([Cu])(Br)(Br)Br. The MOF has largest included sphere 3.77 A, density 1.94 g/cm3, surface area 3400.04 m2/g, accessible volume 0.14 cm3/g