NDLI: Aquabis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)cobalt (II): Crystal Structure and Spectroscopic Properties

Content Provider	Springer Nature Link
Author	Zhang, Huaihong Sun, Yu Chen, Xiaodan Liang, Qing Sun, Baiwang
Copyright Year	2011
Abstract	The title cobalt complex, [Co(C$_{9}$H$_{7}$N$_{2}$O$_{2}$)$_{2}$H$_{2}$O]H$_{2}$O, has been synthesized by the reaction of ligand, 9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidine-4-one (HL), and cobalt nitrate. The synthesized complex was characterized by IR, elemental analysis (C, H and N), mass spectrometry and X-ray crystallography. The structure was solved in monoclinic, space group P2$_{1}$/c with a = 14.4584(13), b = 6.9385(8), c = 18.045(2) Å, β = 94.8440(10), V = 1803.8(3) Å$^{3}$, Z = 4, and with R $_{int}$ = 0.034. The Co(II) complex, as shown by the single-crystal structure determination, existed as a mononuclear complex with distorted square-pyramidal geometry. The mental center was coordinated by two molecules from the bidentate ligand (HL) and an O atom from the coordinated water molecule. The intermolecular aromatic π–π stacking interactions generate discrete dimers. Furthermore, these discrete dimers were connected via O–H···O hydrogen bond in complex to form three-dimensional networks. At room temperature, the complex can emit blue luminescence at 430 nm in the solid state, while it about 42 nm blue-shifted in ethanol solution. Compared with free ligand, the luminescence was greatly intensified.A new cobalt complex [Co(L)2H$_{2}$O]H$_{2}$O (L=9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidine-4-one) was obtained. The synthesized complex was characterized by IR, elemental analysis (C, H and N), mass spectrometry and X-ray crystallography. The structure was solved in monoclinic, space group P2$_{1}$/c with a = 14.4584(13), b = 6.9385(8), c = 18.045(2) Å, β = 94.8440(10), V = 1803.8(3) Å$^{3}$, Z = 4 and with R $_{int}$=0.034. The Co(II) complex, as shown by the single-crystal structure determination, existed as a mononuclear complex with distorted square-pyramidal geometry. The mental center was coordinated by two molecules from the bidentate ligand and an O atom from the coordinated water molecule. At room temperature, the complex can emit blue luminescence at 430 nm in the solid state, while it about 42 nm blue-shifted in ethanol solution. Compared with free ligand, the luminescence was greatly intensified.
Starting Page	715
Ending Page	720
Page Count	6
File Format	PDF
ISSN	10741542
Journal	Journal of Chemical Crystallography
Volume Number	41
Issue Number	5
e-ISSN	15728854
Language	English
Publisher	Springer US
Publisher Date	2011-01-19
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Co(II)complex Crystal structures π–π stacking Photoluminescence Physical Chemistry Crystallography Organometallic Chemistry Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Aquabis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)zinc(II) monohydrate

$Diaquabis[3-(2-hydroxyethyl)-2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato-κ^{2}$ N $^{1},O$ $^{9}]manganese(II)$

Diaquabis[3-(2-hydroxyethyl)-2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato-κ2 N 1,O 9]manganese(II)

Synthesis and Crystal Structure of a Novel Supramolecular Complex: [Co(2-Me-3,4-qudc)(Phen)$_{2}$(H$_{2}$O)]·4.5H$_{2}$O

Aquabis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)zinc(II) monohydrate

Synthesis and Crystal Structure of a Polymeric Cobalt(II) Complex with 1,2-bis(1,2,4-triazol-1-yl)ethane

Synthesis and Crystal Structure of Bis-(N,N′-dibenzylethane-1,2-diamine) cobalt(II) acetate

Syntheses and Crystal Structures of Two Apigenin Alkylation Derivatives

Hydrogen bonds and π–π stacking interaction in 4′, 7-dimethoxylisoflavone and 4′,7-diacetyl-O-isoflavone

Aquabis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)cobalt (II): Crystal Structure and Spectroscopic Properties

Similar Documents

Aqua­bis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)zinc(II) monohydrate

$Diaqua­bis[3-(2-hydroxy­ethyl)-2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato-κ^{2}$ N $^{1},O$ $^{9}]manganese(II)$

Diaqua­bis[3-(2-hydroxy­ethyl)-2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato-κ2 N 1,O 9]manganese(II)

Synthesis and Crystal Structure of a Novel Supramolecular Complex: [Co(2-Me-3,4-qudc)(Phen)$_{2}$(H$_{2}$O)]·4.5H$_{2}$O

Aqua­bis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)zinc(II) monohydrate

Synthesis and Crystal Structure of a Polymeric Cobalt(II) Complex with 1,2-bis(1,2,4-triazol-1-yl)ethane

Synthesis and Crystal Structure of Bis-(N,N′-dibenzylethane-1,2-diamine) cobalt(II) acetate

Syntheses and Crystal Structures of Two Apigenin Alkylation Derivatives

Hydrogen bonds and π–π stacking interaction in 4′, 7-dimethoxylisoflavone and 4′,7-diacetyl-O-isoflavone

Aquabis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)cobalt (II): Crystal Structure and Spectroscopic Properties

Aquabis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)zinc(II) monohydrate

$Diaquabis[3-(2-hydroxyethyl)-2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato-κ^{2}$ N $^{1},O$ $^{9}]manganese(II)$

Diaquabis[3-(2-hydroxyethyl)-2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato-κ2 N 1,O 9]manganese(II)

Aquabis(2-methyl-4-oxopyrido[1,2-a]pyrimidin-9-olato)zinc(II) monohydrate