Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Zahida Tasneem Maqsood"'
Publikováno v:
Pakistan Journal of Analytical & Environmental Chemistry, Vol 20, Iss 1, Pp 1-10 (2019)
This study develops a gas chromatographic method coupled to micro-electron capture detector to determine four basic polychlorinated dibenzo-p-dioxins (PCDDs) congeners: 1, 1,2,3,7,8-pentachlorodibenzo-p-dioxin; 2, 2,3,7,8-tetrachlorodibenzo-p-dioxin;
Externí odkaz:
https://doaj.org/article/7fb3473d5f354cd4b030c70451faef70
Autor:
Uzma Ashiq, Rifat Ara Jamal, Muhammad Nadeem Arshad, Zahida Tasneem Maqsood, Islam Ullah Khan
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2360-o2360 (2009)
The title compound, C7H9N3O, crystallizes with two independent molecules per asymmetric unit. The structure is stabilized by four distinct intermolecular N—H...O hydrogen bonds. Four intramolecular interactions of the N—H...N and C—H...O types
Externí odkaz:
https://doaj.org/article/04497216805d44889763d0586681cff9
Autor:
Rifat Ara Jamal, Uzma Ashiq, Muhammad Nadeem Arshad, Zahida Tasneem Maqsood, Islam Ullah Khan
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2473-o2473 (2009)
The title compound, C8H10N2O2, crystallizes with two independent molecules in an asymmetric unit. The structure is stabilized by nine intermolecular N—H...N, N—H...O and C—H...O hydrogen bonds.
Externí odkaz:
https://doaj.org/article/f54e5ff5d36e44dfa6f616de9061bafb
Autor:
Uzma Ashiq, Rifat Ara Jamal, Muhammad Nadeem Arshad, Zahida Tasneem Maqsood, Islam Ullah Khan
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2542-o2542 (2009)
The title compound, C8H10N2O2, crystallizes as two independent molecules linked by N—H...N and N—H...O hydrogen bonds into a linear chain running along the a axis of the monoclinic unit cell. The intra- and intermolecular hydrogen bonds are descr
Externí odkaz:
https://doaj.org/article/ef28fa7a5cc24e01bf114af1f91aa303
Autor:
Rifat Ara Jamal, Uzma Ashiq, Muhammad Nadeem Arshad, Zahida Tasneem Maqsood, Islam Ullah Khan
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 8, Pp o1764-o1764 (2009)
In the title compound, C7H8N2O2, the mean planes of the benzene ring and the planar hydrazide group are inclined at 25.75 (6)° with respect to each other. The structure is stabilized by intermolecular N—H...O and O—H...N hydrogen bonds.
Externí odkaz:
https://doaj.org/article/17ae0fd0a50946c0bde1d6809a57c8fa
Autor:
Rifat Ara Jamal, Uzma Ashiq, Muhammad Nadeem Arshad, Islam Ullah Khan, Zahida Tasneem Maqsood
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 11, Pp o2188-o2188 (2008)
In the structure of the title compound, C7H7IN2O, the hydrazide group is inclined at 13.3 (3)° with respect to the benzene ring. The structure is stabilized by intermolecular N—H...N and N—H...O hydrogen bonds involving the hydrazide group, resu
Externí odkaz:
https://doaj.org/article/1490639240fb4e9fb43428cce027a52f
Publikováno v:
Pakistan Journal of Analytical & Environmental Chemistry, Vol 20, Iss 1, Pp 1-10 (2019)
This study develops a gas chromatographic method coupled to micro-electron capture detector to determine four basic polychlorinated dibenzo- p -dioxins (PCDDs) congeners: 1, 1,2,3,7,8-pentachlorodibenzo- p -dioxin; 2, 2,3,7,8-tetrachlorodibenzo- p -d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d194e3d76e82060633231d04049eb440
https://doi.org/10.21743/pjaec/2019.06.01
https://doi.org/10.21743/pjaec/2019.06.01
Autor:
Asad Khan, Tanoli, Zahid, Khan, Tuba, Kamal, Mohsin, Ali, Mehreen, Latif, Zahida Tasneem, Maqsood
Publikováno v:
Pakistan journal of pharmaceutical sciences. 32(1)
New series of Co+2, Ni+2, Cu+2 and Zn+2 complexes have been synthesized using a bio-active hydrazone compound 4-hydroxybenzaldehyde-N-(5-chloro-2-oxo-1,2-dihydro-3H-indol-3-ylidene), abbreviated as [HL]. Complexes were characterized using elemental a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::99e161f7561d36b41787756aa3ded35e
https://pubmed.ncbi.nlm.nih.gov/30772797
https://pubmed.ncbi.nlm.nih.gov/30772797
Autor:
Zahida Tasneem Maqsood, Mehreen Lateef, Zahid M. Khan, Muhammad Asad Khan Tanoli, Khalid Mohammed Khan, Lubna Iqbal
Publikováno v:
Journal of Basic & Applied Sciences. 11:125-130
Four novel complexes of “3-(2-(2-hydroxy-3-methoxybenzylidene)hydrazono)indolin-2-one†have been synthesized with Co +2 , Ni +2 , Cu +2 and Zn +2 . Physical and analytical techniques including CHN, IR, UV-Vis, AAS, molar conductivity valu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44c284eeb55fbe9b8d8b0a7155903a10
https://doi.org/10.6000/1927-5129.2015.11.17
https://doi.org/10.6000/1927-5129.2015.11.17
Publikováno v:
Pakistan journal of pharmaceutical sciences. 29(6)
Schiff bases are versatile organic compounds and are widely studied for their broad range of biological applications. Extensive experimental data is available on these compounds but theoretical aspects are not comprehensively studied so far. This pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::abc7542f99fc95c851127d8015ee51bd
https://pubmed.ncbi.nlm.nih.gov/28375124
https://pubmed.ncbi.nlm.nih.gov/28375124