Crystal structures of three anhydrous salts of the Lewis base 1,8-di­aza­bicyclo­[5.4.0]undec-7-ene (DBU) with the ring-substituted benzoic acid analogues 4-amino­benzoic acid, 3,5-di­nitro­benzoic acid and 3,5-di­nitro­salicylic acid

. 2016 Feb 20;72(Pt 3):382–386. doi: 10.1107/S205698901600267X

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
O2B	0.0472 (13)	0.0563 (16)	0.0297 (14)	0.0095 (12)	0.0168 (11)	0.0083 (12)
O11B	0.0356 (9)	0.0369 (10)	0.0579 (12)	0.0124 (8)	0.0087 (8)	0.0063 (9)
O12B	0.0492 (11)	0.0640 (13)	0.0484 (12)	0.0080 (10)	0.0245 (9)	−0.0040 (10)
O31B	0.0774 (15)	0.0847 (18)	0.0749 (17)	−0.0226 (13)	−0.0181 (12)	0.0525 (14)
O32B	0.0708 (15)	0.0894 (18)	0.0629 (15)	0.0492 (13)	−0.0082 (11)	0.0045 (12)
O51B	0.0542 (11)	0.0636 (13)	0.0680 (14)	0.0066 (10)	0.0346 (10)	−0.0115 (11)
O52B	0.0918 (15)	0.0703 (15)	0.0456 (13)	0.0168 (13)	0.0323 (11)	0.0224 (11)
N3B	0.0592 (15)	0.0338 (13)	0.0411 (14)	0.0003 (11)	−0.0127 (12)	0.0001 (11)
N5B	0.0464 (12)	0.0388 (13)	0.0405 (13)	−0.0040 (10)	0.0189 (10)	−0.0056 (11)
C1B	0.0259 (11)	0.0216 (12)	0.0323 (13)	−0.0038 (9)	0.0021 (9)	−0.0035 (10)
C2B	0.0341 (12)	0.0270 (13)	0.0280 (13)	−0.0057 (10)	0.0044 (10)	−0.0019 (10)
C3B	0.0361 (12)	0.0241 (12)	0.0300 (14)	−0.0006 (10)	−0.0049 (10)	0.0015 (10)
C4B	0.0256 (11)	0.0245 (12)	0.0406 (15)	−0.0010 (10)	−0.0006 (10)	−0.0054 (11)
C5B	0.0297 (11)	0.0257 (12)	0.0285 (13)	−0.0056 (10)	0.0077 (10)	−0.0023 (10)
C6B	0.0288 (11)	0.0214 (12)	0.0275 (13)	−0.0017 (9)	−0.0001 (9)	0.0021 (10)
C11B	0.0292 (12)	0.0284 (13)	0.0466 (16)	−0.0028 (10)	0.0068 (11)	−0.0055 (12)
O21B	0.043 (4)	0.059 (5)	0.053 (4)	0.008 (3)	0.009 (3)	0.025 (4)
N1A	0.0254 (9)	0.0319 (11)	0.0304 (11)	0.0014 (8)	0.0038 (8)	−0.0007 (9)
N8A	0.0333 (11)	0.0476 (13)	0.0299 (12)	0.0157 (10)	0.0051 (9)	0.0034 (10)
C2A	0.0254 (11)	0.0378 (14)	0.0427 (15)	0.0059 (10)	0.0006 (10)	−0.0026 (12)
C3A	0.0358 (13)	0.0339 (14)	0.0464 (16)	0.0066 (11)	−0.0044 (11)	0.0003 (12)
C4A	0.0442 (14)	0.0384 (15)	0.0365 (15)	−0.0024 (12)	−0.0061 (11)	0.0074 (12)
C5A	0.0370 (13)	0.0508 (17)	0.0308 (14)	−0.0005 (12)	0.0075 (10)	0.0080 (12)
C6A	0.0340 (12)	0.0413 (15)	0.0262 (13)	0.0081 (11)	0.0029 (10)	−0.0052 (11)
C7A	0.0270 (11)	0.0226 (12)	0.0291 (13)	−0.0006 (9)	0.0014 (9)	−0.0035 (10)
C9A	0.042 (3)	0.037 (4)	0.0292 (18)	0.001 (2)	0.000 (2)	0.005 (3)
C10A	0.047 (2)	0.041 (2)	0.0263 (17)	−0.0052 (17)	0.0070 (16)	−0.0033 (19)
C11A	0.0363 (13)	0.0419 (15)	0.0335 (14)	−0.0014 (11)	0.0150 (11)	−0.0058 (12)
C13A	0.042 (3)	0.037 (4)	0.0292 (18)	0.001 (2)	0.000 (2)	0.005 (3)
C12A	0.047 (2)	0.041 (2)	0.0263 (17)	−0.0052 (17)	0.0070 (16)	−0.0033 (19)