(Z)-3-Hydrazinylidene-1-phenylindolin-2-one by Abdel-Aziz, H.A., Bari, A., Aboul-Fadl, T., Ng, S.W.

“…The indoline fused-ring system of the title Schiff base, C14H11N3O, is planar (r.m.s. deviation = 0.005 angstrom); the phenyl substituent is aligned at 66.5 (1)degrees with respect to the ring system. …”

1,2-Bis(benzyloxy)-1,2-bis(4-chlorophenyl)-3,8-dimethoxyacenaphthene by Noriyuki Yonezawa, Hideaki Oike, Akiko Okamoto, Daichi Hijikata, Teruhisa Takada

“…In the title compound, C40H32Cl2O4, the two chlorobenzene rings are in syn orientations with respect to the naphthalene ring system and make dihedral angles of 57.12 (6) and 85.74 (6)° with it. …”
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8-Bromo-3-phenyl-3a,4-dihydro-3H-chromeno[4,3-c]isoxazole-3a-carbonitrile by G. Suresh, J. Srinivasan, M. Bakthadoss, S. Aravindhan

“…The dihedral angle between the mean planes of the chromeno ring system and the isoxazole ring is 13.79 (15)°. …”
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{2,7-Diethoxy-8-[(naphthalen-1-yl)carbonyl]naphthalen-1-yl}(naphthalen-1-yl)methanone by Takehiro Tsumuki, Ryo Takeuchi, Hiroyuki Kawano, Noriyuki Yonezawa, Akiko Okamoto

“…The dihedral angles between the central 2,7-diethoxynaphthalene ring system and the terminal naphthalene ring systems are 86.48 (4) and 83.97 (4)°. …”
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Modeling Stress-Strain State of Roller/Ring Tribo-Fatigue System by S.S. Sherbakov, S.M. Borodako

“…These loads in the roller/ring system are defined by single compressive force. …”
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5-Phenyl-3-(2-thienyl)-1,2,4-triazolo[3,4-a]isoquinoline by Khan, F.N., Manivel, P., Prabakaran, K., Hathwar, V.R., Ng, S.W.

“…In the title molecule, C(20)H(13)N(3)S, the triazoloisoquinoline ring system is approximately planar, with an r.m.s. deviation of 0.045 angstrom and a maximum deviation of 0.090 (2) angstrom from the mean plane for the triazole ring C atom which is bonded to the thiophene ring. …”

[2,7-Dimethoxy-8-(4-methoxybenzoyl)naphthalen-1-yl](4-methoxyphenyl)methanone chloroform monosolvate by Noriyuki Yonezawa, Akiko Okamoto, Taro Kusakabe, Rei Sakamoto, Kosuke Sasagawa

“…The naphthalene ring system makes dihedral angles of 72.51 (7) and 73.33 (7)° with the benzene rings. …”
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7-Benzyl-3-(4-fluorophenyl)-2-(pyrrolidin-1-yl)-5,6,7,8-tetrahydropyrido[4′,3′:4,5]thieno[2,3-d]pyrimidin-4(3H)-one by Hong Chen, Hai-Jun Hu, Kai Yan, Qiu-Hong Dai

“…This ring system forms dihedral angles of 67.5 (1) and 88.9 (1) ° with the adjacent six-membered rings. …”
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Methyl 2-(5-chloro-1-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene)acetate by Piskala Subburaman Kannan, PanneerSelvam Yuvaraj, Karthikeyan Manivannan, Boreddy S. R. Reddy, A. SubbiahPandi

“…The title compound, C12H10ClNO3, the indoline ring system is essentially planar, with a maximum deviation of 0.009 Å for the N atom. …”
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3,4,7-Trimethyl-2-(4-methylphenyl)-2H-pyrazolo[3,4-d]pyridazin-5-ium thiocyanate by Abdel-Aziz, H.A., Bari, A., Ng, S.W.

“…1,1'-[5-Methyl-1-(4-methylphenyl)-1H-pyrazole-3,4-diyl)diethanone condenses with thiosemicarbazide in the presence of acetic acid to form the title salt, C15H17N4+center dot NCS-. The fused-ring system of the cation is almost planar (r.m.s. deviation = 0.020 angstrom) and the aromatic substituent is aligned at an angle of 48.2 (1)degrees with respect to the mean plane of the fused-ring system. …”

1,3-Diallyl-1H-anthra[1,2-d]imidazole-2,6,11(3H)-trione by Afrakssou, Z., Rodi, Y.K., Zouihri, H., Essassi, E.M., Ng, S.W.

“…In the title compound, C(21)H(16)N(2)O(3), the fused-ring system (r.m.s. deviation = 0.067 angstrom) is slightly buckled at the carbonyl C atom of the anthracenyl ring system [deviation = 0.177 (1) angstrom] that is closer to an allyl substituent. …”

3-Benzyl-6-bromo-2-(2-furyl)-3H-imidazo[4,5-b]pyridine by Ouzidan, Y., Rodi, Y.K., Zouihri, H., Essassi, E.M., Ng, S.W.

“…In the title molecule, C(17)H(12)BrN(3)O, the imidazopyridine ring system is almost coplanar with the furan ring [dihedral angle = 2.0 (3)degrees]. …”

Constraining the period of the ringed secondary companion to the young star J1407 with photographic plates by Mentel, RT, Kenworthy, MA, Cameron, DA, Scott, EL, Mellon, SN, Hudec, R, Birkby, JL, Mamajek, EE, Schrimpf, A, Reichart, DE, Haislip, JB, Kouprianov, VV, Hambsch, F-J, Tan, T-G, Hills, K, Grindlay, JE, Rodriguez, JE, Lund, MB, Kuhn, RB

“…These limits are still marginally consistent with a large Hill sphere filling ring system surrounding a brown dwarf companion in a bound elliptical orbit about J1407. …”

Crystal structure of trans-1-{2-[4-(dimethylamino)phenyl]ethyl}-4-[2-(pyren-1-yl)ethyl]cyclohexane by Sreevidya Thekku Veedu, Simone Techert

“…The title compound, C34H37N, is a pyrene derivative in which the pyrene ring system is linked to an ethylcyclohexane unit which, in turn, carries a [4-(dimethylamino)phenyl]ethyl substituent in the para position. …”
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Crystal structure of 1,3,6,8-tetrabromo-9-ethyl-9H-carbazole by Mykola Bezuglyi, Gintare Grybauskaite, Gintautas Bagdziunas, Juozas Vidas Grazulevicius

“…In the title compound, C14H9Br4N, the tricyclic ring system is almost planar (r.m.s. deviation for the 13 non-H atoms = 0.017 Å) and the methyl C atom deviates from the mean plane of the ring system by 1.072 (17) Å. …”
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2-[5-(2,3-Dimethoxynaphthalen-1-yl)-4,5-dihydro-1H-pyrazol-3-yl]-3-methoxyphenol by Jiha Sung

“…The pyrazoline ring subtends dihedral angles of 4.61 (1) and 87.31 (1)° with the pendant benzene ring and naphthalene ring system, respectively. The dihedral angle between the planes of the benzene ring and the naphthalene ring system is 89.76 (2)°. …”
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Ethyl 1-sec-butyl-2-phenyl-1H-benzimidazole-5-carboxylate by Arumugam, Natarajan, Abdul Rahim, Aisyah Saad, Abd Hamid, Shafida, Hemamalini, Madhukar, Fun, Hoong-Kun

“…In the title molecule, C20H22N2O2, the benzimidazole ring system is essentially planar, with a maximum deviation of 0.024 (1) A ˚ . …”
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1-Allyl-4-(1,3-benzothiazol-2-yl)-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one by Chakib, I., Zerzouf, A., Zouihri, H., Essassi, E.M., Ng, S.W.

“…The five-membered ring and fused ring system are planar, the r.m.s. deviations being 0.021 and 0.005 angstrom, respectively. …”

4-(1,3-Benzothiazol-2-yl)-5-methyl-2phenyl-1-propynyl-1H-pyrazol-3(2H)-o ne by Chakib, I., Zerzouf, A., Zouihri, H., Essassi, E.M., Ng, S.W.

“…The five-membered ring and the fused-ring system are close to planar, the r.m.s. deviations being 0.025 and 0.005 angstrom, respectively. …”

2-(4,5-Dichloro-2-nitrophenyl)-4-methoxy-3-methyl-9-phenylsulfonyl-9H-carbazole by P. Narayanan, K. Sethusankar, Velu Saravanan, Arasambattu K. Mohanakrishnan

“…In the title compound, C26H18Cl2N2O5S, the carbazole ring system is essentially planar with a maximum deviation of 0.0498 (16) Å for the N atom. …”
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