Mn6Cu6B8C264H288(O16Cl)3 crystallizes in the monoclinic C2 space group. Mn(1,2,3) is bonded to one O(2,10,22); one O(8,16,20); two equivalent O(1,5,9,13,17,21); and one Cl(1,2) atom to form distorted MnClO4 trigonal bipyramids that share  a cornercorner with one Mn(1,2,3)ClO4 trigonal bipyramid and corners with two equivalent Cu(1,2,3)ClO4 trigonal bipyramids. The Mn(1,2,3)-O(2,10,22) bond length is 1.97 Å. The Mn(1,2,3)-O(8,16,20) bond length is 1.97 Å. Both Mn(1,2,3)-O(1,5,9,13,17,21) bond lengths are 1.95 Å. The Mn(1,2,3)-Cl(1,2) bond length is 2.53 Å. Cu(1,2,3) is bonded to one O(4,12,24); one O(6,14,18); two equivalent O(3,7,11,15,19,23); and one Cl(1,2) atom to form distorted CuClO4 trigonal bipyramids that share  a cornercorner with one Cu(1,2,3)ClO4 trigonal bipyramid and corners with two equivalent Mn(1,2,3)ClO4 trigonal bipyramids. The Cu(1,2,3)-O(4,12,24) bond length is 1.97 Å. The Cu(1,2,3)-O(6,14,18) bond length is 1.97 Å. Both Cu(1,2,3)-O(3,7,11,15,19,23) bond lengths are 1.95 Å. The Cu(1,2,3)-Cl(1,2) bond length is 2.53 Å. B(1,2,3,4) is bonded in a trigonal planar geometry to three equivalent C(1,12,23,34,45,56,67,78,89,100,111,122) atoms. All B(1,2,3,4)-C(1,12,23,34,45,56,67,78,89,100,111,122) bond lengths are 1.58 Å. There are fifteen inequivalent C sites. In the first C site, C(35,79,101) is bonded in a distorted bent 120 degrees geometry to one C(14,36,58,80,102,124); one O(3,7,11,15,19,23); and one O(8,16,20) atom. The C(35,79,101)-C(14,36,58,80,102,124) bond length is 1.50 Å. The C(35,79,101)-O(3,7,11,15,19,23) bond length is 1.30 Å. The C(35,79,101)-O(8,16,20) bond length is 1.23 Å. In the second C site, C(1,12,23,34,45,56,67,78,89,100,111,122) is bonded in a distorted trigonal planar geometry to one B(1,2,3,4); one C(5,16,27,38,49,60,71,82,93,104,115,126); and one C(7,18,29,40,51,62,73,84,95,106,117,128) atom. The C(1,12,23,34,45,56,67,78,89,100,111,122)-C(5,16,27,38,49,60,71,82,93,104,115,126) bond length is 1.46 Å. The C(1,12,23,34,45,56,67,78,89,100,111,122)-C(7,18,29,40,51,62,73,84,95,106,117,128) bond length is 1.38 Å. In the third C site, C(2,46,112) is bonded in a distorted bent 120 degrees geometry to one C(3,25,47,69,91,113); one O(1,5,9,13,17,21); and one O(2,10,22) atom. The C(2,46,112)-C(3,25,47,69,91,113) bond length is 1.50 Å. The C(2,46,112)-O(1,5,9,13,17,21) bond length is 1.30 Å. The C(2,46,112)-O(2,10,22) bond length is 1.23 Å. In the fourth C site, C(3,25,47,69,91,113) is bonded in a trigonal planar geometry to one C(2,46,112); one C(4,15,26,37,48,59,70,81,92,103,114,125); and one C(6,17,28,39,50,61,72,83,94,105,116,127) atom. The C(3,25,47,69,91,113)-C(4,15,26,37,48,59,70,81,92,103,114,125) bond length is 1.41 Å. The C(3,25,47,69,91,113)-C(6,17,28,39,50,61,72,83,94,105,116,127) bond length is 1.40 Å. In the fifth C site, C(4,15,26,37,48,59,70,81,92,103,114,125) is bonded in a trigonal planar geometry to one C(10,21,32,43,54,65,76,87,98,109,120,131); one C(3,25,47,69,91,113); and one C(7,18,29,40,51,62,73,84,95,106,117,128) atom. The C(4,15,26,37,48,59,70,81,92,103,114,125)-C(10,21,32,43,54,65,76,87,98,109,120,131) bond length is 1.53 Å. The C(4,15,26,37,48,59,70,81,92,103,114,125)-C(7,18,29,40,51,62,73,84,95,106,117,128) bond length is 1.39 Å. In the sixth C site, C(5,16,27,38,49,60,71,82,93,104,115,126) is bonded in a trigonal planar geometry to one C(1,12,23,34,45,56,67,78,89,100,111,122); one C(6,17,28,39,50,61,72,83,94,105,116,127); and one C(9,20,31,42,53,64,75,86,97,108,119,130) atom. The C(5,16,27,38,49,60,71,82,93,104,115,126)-C(6,17,28,39,50,61,72,83,94,105,116,127) bond length is 1.38 Å. The C(5,16,27,38,49,60,71,82,93,104,115,126)-C(9,20,31,42,53,64,75,86,97,108,119,130) bond length is 1.52 Å. In the seventh C site, C(6,17,28,39,50,61,72,83,94,105,116,127) is bonded in a trigonal planar geometry to one C(11,22,33,44,55,66,77,88,99,110,121,132); one C(3,25,47,69,91,113); and one C(5,16,27,38,49,60,71,82,93,104,115,126) atom. The C(6,17,28,39,50,61,72,83,94,105,116,127)-C(11,22,33,44,55,66,77,88,99,110,121,132) bond length is 1.53 Å. In the eighth C site, C(7,18,29,40,51,62,73,84,95,106,117,128) is bonded in a trigonal planar geometry to one C(1,12,23,34,45,56,67,78,89,100,111,122); one C(4,15,26,37,48,59,70,81,92,103,114,125); and one C(8,19,30,41,52,63,74,85,96,107,118,129) atom. The C(7,18,29,40,51,62,73,84,95,106,117,128)-C(8,19,30,41,52,63,74,85,96,107,118,129) bond length is 1.52 Å. In the ninth C site, C(8,19,30,41,52,63,74,85,96,107,118,129) is bonded in a trigonal non-coplanar geometry to one C(7,18,29,40,51,62,73,84,95,106,117,128); one H(1,13,25,37,49,61,73,85,97,109,121,133); and two equivalent H(2,3,14,15,26,27,38,39,50,51,62,63,74,75,86,87,98,99,110,111,122,123,134,135) atoms. The C(8,19,30,41,52,63,74,85,96,107,118,129)-H(1,13,25,37,49,61,73,85,97,109,121,133) bond length is 0.96 Å. Both C(8,19,30,41,52,63,74,85,96,107,118,129)-H(2,3,14,15,26,27,38,39,50,51,62,63,74,75,86,87,98,99,110,111,122,123,134,135) bond lengths are 0.96 Å. In the tenth C site, C(9,20,31,42,53,64,75,86,97,108,119,130) is bonded in a trigonal non-coplanar geometry to one C(5,16,27,38,49,60,71,82,93,104,115,126); one H(4,16,28,40,52,64,76,88,100,112,124,136); one H(5,17,29,41,53,65,77,89,101,113,125,137); and one H(6,18,30,42,54,66,78,90,102,114,126,138) atom. The C(9,20,31,42,53,64,75,86,97,108,119,130)-H(4,16,28,40,52,64,76,88,100,112,124,136) bond length is 0.96 Å. The C(9,20,31,42,53,64,75,86,97,108,119,130)-H(5,17,29,41,53,65,77,89,101,113,125,137) bond length is 0.96 Å. The C(9,20,31,42,53,64,75,86,97,108,119,130)-H(6,18,30,42,54,66,78,90,102,114,126,138) bond length is 0.96 Å. In the eleventh C site, C(10,21,32,43,54,65,76,87,98,109,120,131) is bonded in a trigonal non-coplanar geometry to one C(4,15,26,37,48,59,70,81,92,103,114,125); one H(8,20,32,44,56,68,80,92,104,116,128,140); and two equivalent H(7,9,19,21,31,33,43,45,55,57,67,69,79,81,91,93,103,105,115,117,127,129,139,141) atoms. The C(10,21,32,43,54,65,76,87,98,109,120,131)-H(8,20,32,44,56,68,80,92,104,116,128,140) bond length is 0.96 Å. Both C(10,21,32,43,54,65,76,87,98,109,120,131)-H(7,9,19,21,31,33,43,45,55,57,67,69,79,81,91,93,103,105,115,117,127,129,139,141) bond lengths are 0.96 Å. In the twelfth C site, C(11,22,33,44,55,66,77,88,99,110,121,132) is bonded in a trigonal non-coplanar geometry to one C(6,17,28,39,50,61,72,83,94,105,116,127); one H(10,22,34,46,58,70,82,94,106,118,130,142); one H(11,23,35,47,59,71,83,95,107,119,131,143); and one H(12,24,36,48,60,72,84,96,108,120,132,144) atom. The C(11,22,33,44,55,66,77,88,99,110,121,132)-H(10,22,34,46,58,70,82,94,106,118,130,142) bond length is 0.96 Å. The C(11,22,33,44,55,66,77,88,99,110,121,132)-H(11,23,35,47,59,71,83,95,107,119,131,143) bond length is 0.96 Å. The C(11,22,33,44,55,66,77,88,99,110,121,132)-H(12,24,36,48,60,72,84,96,108,120,132,144) bond length is 0.96 Å. In the thirteenth C site, C(13,57,123) is bonded in a distorted bent 120 degrees geometry to one C(14,36,58,80,102,124); one O(3,7,11,15,19,23); and one O(4,12,24) atom. The C(13,57,123)-C(14,36,58,80,102,124) bond length is 1.50 Å. The C(13,57,123)-O(3,7,11,15,19,23) bond length is 1.30 Å. The C(13,57,123)-O(4,12,24) bond length is 1.23 Å. In the fourteenth C site, C(14,36,58,80,102,124) is bonded in a trigonal planar geometry to one C(13,57,123); one C(4,15,26,37,48,59,70,81,92,103,114,125); and one C(6,17,28,39,50,61,72,83,94,105,116,127) atom. The C(14,36,58,80,102,124)-C(4,15,26,37,48,59,70,81,92,103,114,125) bond length is 1.41 Å. The C(14,36,58,80,102,124)-C(6,17,28,39,50,61,72,83,94,105,116,127) bond length is 1.40 Å. In the fifteenth C site, C(24,68,90) is bonded in a distorted bent 120 degrees geometry to one C(3,25,47,69,91,113); one O(1,5,9,13,17,21); and one O(6,14,18) atom. The C(24,68,90)-C(3,25,47,69,91,113) bond length is 1.50 Å. The C(24,68,90)-O(1,5,9,13,17,21) bond length is 1.30 Å. The C(24,68,90)-O(6,14,18) bond length is 1.23 Å. There are ten inequivalent H sites. In the first H site, H(1,13,25,37,49,61,73,85,97,109,121,133) is bonded in a single-bond geometry to one C(8,19,30,41,52,63,74,85,96,107,118,129) atom. In the second H site, H(2,3,14,15,26,27,38,39,50,51,62,63,74,75,86,87,98,99,110,111,122,123,134,135) is bonded in a single-bond geometry to one C(8,19,30,41,52,63,74,85,96,107,118,129) atom. In the third H site, H(4,16,28,40,52,64,76,88,100,112,124,136) is bonded in a single-bond geometry to one C(9,20,31,42,53,64,75,86,97,108,119,130) atom. In the fourth H site, H(5,17,29,41,53,65,77,89,101,113,125,137) is bonded in a single-bond geometry to one C(9,20,31,42,53,64,75,86,97,108,119,130) atom. In the fifth H site, H(6,18,30,42,54,66,78,90,102,114,126,138) is bonded in a single-bond geometry to one C(9,20,31,42,53,64,75,86,97,108,119,130) atom. In the sixth H site, H(7,9,19,21,31,33,43,45,55,57,67,69,79,81,91,93,103,105,115,117,127,129,139,141) is bonded in a single-bond geometry to one C(10,21,32,43,54,65,76,87,98,109,120,131) atom. In the seventh H site, H(8,20,32,44,56,68,80,92,104,116,128,140) is bonded in a single-bond geometry to one C(10,21,32,43,54,65,76,87,98,109,120,131) atom. In the eighth H site, H(10,22,34,46,58,70,82,94,106,118,130,142) is bonded in a single-bond geometry to one C(11,22,33,44,55,66,77,88,99,110,121,132) atom. In the ninth H site, H(11,23,35,47,59,71,83,95,107,119,131,143) is bonded in a single-bond geometry to one C(11,22,33,44,55,66,77,88,99,110,121,132) atom. In the tenth H site, H(12,24,36,48,60,72,84,96,108,120,132,144) is bonded in a single-bond geometry to one C(11,22,33,44,55,66,77,88,99,110,121,132) atom. There are six inequivalent O sites. In the first O site, O(3,7,11,15,19,23) is bonded in a distorted bent 120 degrees geometry to one Cu(1,2,3) and one C(13,57,123) atom. In the second O site, O(4,12,24) is bonded in a 2-coordinate geometry to one Cu(1,2,3) and one C(13,57,123) atom. In the third O site, O(6,14,18) is bonded in a 2-coordinate geometry to one Cu(1,2,3) and one C(24,68,90) atom. In the fourth O site, O(8,16,20) is bonded in a 2-coordinate geometry to one Mn(1,2,3) and one C(35,79,101) atom. In the fifth O site, O(2,10,22) is bonded in a 2-coordinate geometry to one Mn(1,2,3) and one C(2,46,112) atom. In the sixth O site, O(1,5,9,13,17,21) is bonded in a distorted bent 120 degrees geometry to one Mn(1,2,3) and one C(2,46,112) atom. Cl(1,2) is bonded in a square co-planar geometry to two equivalent Mn(1,2,3) and two equivalent Cu(1,2,3) atoms. Linkers: 8 Cc1c(C)c(C([O])=O)c(C)c(C)c1B(c1c(C)c(C)c(C([O])=O)c(C)c1C)c1c(C)c(C)c(C([O])=O)c(C)c1C. Metal clusters: 2 Cl[Cu]123O[C]O[Mn]4(O[C]O[Mn]5(O[C]O4)O[C]O[Cu](O[C]O5)(O[C]O1)O[C]O2)O[C]O3 ,1 Cl[Mn]123O[C]O[Mn]4(O[C]O[Cu]5(O[C]O4)O[C]O[Cu](O[C]O5)(O[C]O1)O[C]O2)O[C]O3. RCSR code: the. The MOF has largest included sphere 14.99 A, density 0.73 g/cm3, surface area 4591.71 m2/g, accessible volume 0.69 cm3/g