3-Nitrophenol-4,4 '-bipyridyl N,N '-dioxide (2/1): a DFT study and CSD analysis of DPNO molecular complexes

The title 2:1 complex of 3-nitrophenol (MNP) and 4,4'-bipyridyl N, N'-dioxide (DPNO), 2C(6)H(5)NO(3)center dot C(10)H(8)N(2)O(2) or 2MNP center dot DPNO, crystallizes as a centrosymmetric three-component adduct with a dihedral angle of 59.40 (8)degrees between the planes of the benzene rings of MNP and DPNO (the DPNO moiety lies across a crystallographic inversion centre located at the mid-point of the C-C bond linking its aromatic rings). The complex owes its formation to O-H center dot center dot center dot O hydrogen bonds [O center dot center dot center dot O = 2.605 (3) angstrom]. Molecules are linked by intermolecular C-H center dot center dot center dot O and C-H center dot center dot center dot N interactions forming R(2)(1) (6) and R(2)(2) (10) rings, and R(6)(6) (34) and R(4)(4) (26) macro-rings, all of which are aligned along the [(1) over bar 01] direction, and R(2)(2) (10) and R(2)(1) (7) rings aligned along the [010] direction. The combination of chains of rings along the [(1) over bar 01] and [010] directions generates the three-dimensional structure. A total of 27 systems containing the DNPO molecule and forming molecular complexes of an organic nature were analysed and compared with the structural characteristics of the dioxide reported here. The N-O distance [1.325 (2) angstrom] depends not only on the interactions involving the O atom at the N-O group, but also on the structural ordering and additional three-dimensional interactions in the crystal structure. A density functional theory (DFT) optimized structure at the B3LYP/6-311G(d,p) level is compared with the molecular structure in the solid state.

2-[(2-Carboxyphenyl)disulfanyl]benzoic acid-4,4 '-bipyridyl N,N '-dioxide (1/2)

In the title 2:1 adduct, C(14)H(10)O(4)S(2)center dot 0.5C(10)H(8)N(2)O(2), which arose from an unexpected oxidation of a precursor, the dihedral angle between the aromatic rings in the disulfide is 82.51 (11)degrees. In the crystal, the molecules are linked by O-H center dot center dot center dot O, OH center dot center dot center dot N and C-H center dot center dot center dot O interactions, generating sheets.

Protección a la infancia; tribunales para niños,

At head of title: 2₂ Congreso Americano del Niño.

Lower Hudson River series. Report[s].

Cover title.

Comptes rendus.

At head of title: 2. Congrès international de sucrerie et des industries de fermentation, organisé par l'Association des chimistes de sucrerie & de distillerie de France et des colonies sous le patronage du gouvernement français, Paris, 6-10 avril 1908.

Suffolk County survey series; Report.

Cover title.

Construction management information system report : project directory.

Cover title.

Construction management information system report : project directory.

Cover title.

The early days of Christianity.

Copy 2: Caption title; 2 v. in 1

Atendimento odontológico a pacientes diabéticos com doença periodontal na atenção primária à saúde

As periodontites estão estreitamente relacionadas à diabetes, de acordo com a OMS é a 6ª complicação do diabete, influenciando e sendo influenciada por esta condição sistêmica. Neste sentido esta revisão de literatura mostra a importância do atendimento integral ao usuário. Para realização deste Trabalho de conclusão de curso foi realizada pesquisa bibliográfica nos bancos de dados BIREME/OPAS/OMS- Biblioteca Virtual em Saúde e MEDLINE. Foram usadas as seguintes palavras-chaves: 1. periodont(title), 2. diabet(title), 3. dental care, 4. primary care, 5. attention 6. diabets and periodont. Os profissionais da ESF, em especial os cirurgiões dentistas têm que ter um maior conhecimento e um olhar mais direcionado para essas duas patologias, elevando assim, o índice de sucesso terapêutico .

Independent living services for older individuals who are blind : Title VII, Chapter 2 : annual report for FY, 1994 /

Mode of access: Internet.

The solid waste disposal act, Title II of Public Law 89-272, 89th Congress, S. 306, October 20, 1965 : as amended by the Resource Recovery Act of 1970, Public Law 91-512-91st Congress, H.R. 11833-October 26, 1970, by Public Law 93-14-93rd Congress, H.R. 5446-April 9, 1973 (to extend the amended Solid Waste Disposal Act - for one year) and by Public Law 93-611-93rd Congress, H.R. 16045-January 2, 1975 (to amend the Solid Waste Disposal Act to authorize appropriations for fiscal year 1975).

Mode of access: Internet.

Revision of certain labor laws contained in chapters 1, 2, and 3 of title 40 of the Code of Virginia [relating to the Department of Labor and Industry, employment agencies, and the protection of employees] Report to the Governor and the General Assembly of Virginia.

Mode of access: Internet.