Structure of a second monoclinic polymorph of triphenylphosphine oxideSPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1987, Vol 43, Num 6, pp 1233-1235, issn 0108-2701Article

Reinvestigation of the structure of ammonium hydrogen D-tartrateSPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1987, Vol 43, Num 8, pp 1633-1634, issn 0108-2701Article

Single-crystal structure validation with the program PLATONSPEK, A. L.Journal of applied crystallography. 2003, Vol 36, pp 7-13, issn 0021-8898, 7 p., 1Article

Crystal structure of (5S, 4R)-5-(2-oxo-2-phenylethyl)-4-(phenylsulfanyl)-2(3H)-dihydrofuranone, C₁₈H₁₆O₃SSPEK, A. L.Zeitschrift für Kristallographie. New crystal structures. 1997, Vol 212, Num 2, pp 257-258, issn 1433-7266Article

(2S, 3R, 5S)-3-Hydroxy-2-methyl-5-(1-methyl-ethenyl)cyclohexanone 0.12-diethyl ether solvateLUTZ, M; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1998, Vol 54, pp 1293-1295, issn 0108-2701, 9Article

3-(N-Benzyl-N-methylcarbamoyl)-1,2,4-trimethylquinolinium iodideLUTZ, M; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1998, Vol 54, pp 1291-1292, issn 0108-2701, 9Article

Complex of (-)-morphine with β-phenylhydracrylic acidtLUTZ, M; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1998, Vol 54, pp 1477-1479, issn 0108-2701, 10Article

The structure of a,b,çj,k,l-hexaaqua-d,e,f,g,h,i-hexakis[μ-(4-ethyl-1,2,4-triazole-N¹,N²)]trizine(II) hexakis(trifluoromethanesulphonate), [Zn₃(C₄H₇N₃)₆(H₂O)₆][CF₃SO₃]₆SPEK, A. L; VOS, G.Acta crystallographica. Section C, Crystal structure communications. 1983, Vol 39, Num 8, pp 990-993, issn 0108-2701Article

(2,2'-biquinoline-κ²,N,N')chloro-'2,2':6',2″-terpyridine-κ³N,N',N″-ruthenium(II) hexafluorophosphate, [RuCl(C₁₈H₁₂N₂)(C₁₅H₁₁N₃)][PF₆]SPEK, A. L; GERLI, A; REEDIJK, J et al.Acta crystallographica. Section C, Crystal structure communications. 1994, Vol 50, pp 394-397, issn 0108-2701, 3Article

Structure of 2,2',6,6'-tetrakis[(dimethylammonium)methyl]biphenyl tetrachloride n.Hydrate (n~1•72)VAN DER SLUIS, P; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1990, Vol 46, Num 10, pp 1938-1940, issn 0108-2701, 3 p.Article

Structure of an η²-phosphaalkene nickel complexSPEK, A. L; DUISENBERG, A. J. M.Acta crystallographica. Section C, Crystal structure communications. 1987, Vol 43, Num 6, pp 1216-1218, issn 0108-2701Article

Structure of di-υ-bromo-bis-υ-{1-[2-(dimethylamino)phenyl]-2-(4-methylphenyl)-1-propenyl-N,C}-tetracopper(I)SMEETS, W. J. J; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1987, Vol 43, Num 5, pp 870-873, issn 0108-2701Article

Structure of 1,2,5,6-tetramethyltricyclo[3.1.0.0^2,6]hexane-3,4-dioneSPEK, A. L; VAN DER SLUIS, P.Acta crystallographica. Section C, Crystal structure communications. 1990, Vol 46, Num 7, pp 1357-1358, issn 0108-2701, 2 p.Article

2,4,6-Triisopropylphenylkupfer, ein neues vierkerniges Organokupferaggregat mit unsymmetrisch verbrückenden, σ-π-gebundenen Arylliganden = 2,4,6-Triisopropylphenylcopper, a new tetranuclear organocopper aggregate with unsymmetrically bridging σ-π bonded aryl ligandsNOBEL, D; VAN KOTEN, G; SPEK, A. L et al.Angewandte Chemie. 1989, Vol 101, Num 2, pp 211-213, issn 0044-8249, 3 p.Article

Monocyclopentadienylzirconium and -hafnium alkyls : synthesis, hydrogen-transfer reactions, and catalytic features in the reactivity with α-olefins. X-ray structure of CpZr(η⁴-butadiene)(dmpe)Cl [dmpe = 1,2-bis(dimethylphosphino)ethane]WIELSTRA, Y; GAMBAROTTA, S; SPEK, A. L et al.Organometallics. 1990, Vol 9, Num 3, pp 572-577, issn 0276-7333Article

Structure of (R)-(3-hydroxy-2,3-dimethylbutyl)triphenylphosphonium iodide n.hydrate (n~1•3)VAN DER SLUIS, P; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1990, Vol 46, Num 12, pp 2429-2431, issn 0108-2701, 3 p.Article

Structure of a second polymorph of calcium acetate monohydrateVAN DER SLUIS, P; SCHOUTEN, A; SPEK, A. L et al.Acta crystallographica. Section C, Crystal structure communications. 1987, Vol 43, Num 10, pp 1922-1924, issn 0108-2701Article

Crystal and molecular structure of bis[(μ-benzotriazolato-N1,N2)methylmercury(II)]SPEK, A. L; SIEDLE, A. R; REEDIJK, J et al.Inorganica chimica acta. 1985, Vol 100, Num 2, pp L15-L19, issn 0020-1693Article

BYPASS: an effective method for the refinement of crystal structures containing disordered solvent regionsVAN DER SLUIS, P; SPEK, A. L.Acta crystallographica. Section A, Foundations of crystallography. 1990, Vol 46, pp 194-201, issn 0108-7673, 8 p., 3Article

Structure of 2-hydroxy-(5-{[4-(2-pyridinylamino)sulfonyl]phenyl}azo)benzoic acid-N,N-dimethylformamide-H₂O (1/0.5/n)(n~2.25)VAN DER SLUIS, P; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1990, Vol 46, Num 5, pp 883-886, issn 0108-2701Article

Structure of methyl 8,9-epoxy-5,5-ethylenedioxy-7-oxo-11-methoxytricyclo[7.2.1.0^4,10]dodec-3-ene-8-carboxylateSPEK, A. L; VAN EIJCK, B. P.Acta crystallographica. Section C, Crystal structure communications. 1988, Vol 44, Num 6, pp 1139-1141, issn 0108-2701Article

Structure of calcium hydrogen triacetate monohydrate, CaH(C₂H₃O₂)₃.H₂OKLOP, E. A; SPEK, A. L.Acta crystallographica. Section C, Crystal structure communications. 1984, Vol 40, Num 11, pp 1817-1819, issn 0108-2701Article

Abspaltung von drei Protonen aus einem 1-Methylallylhafniumkomplex durch Thermolyse unter Bildung eines Hf₃(C₄H₄)-Clusters = Triple enlèvement de proton par thermolyse d'un complexe de méthyl-1 allyl hafnium avec formation d'un agrégat Hf₃(C₄H₄) = Triple proton abstraction by thermolysis of 1-methylallylhafnium complex with formation of Hf₃(C₄H₄) clusterHESSEN, B; SPEK, A. L; TEUBEN, J. H et al.Angewandte Chemie. 1988, Vol 100, Num 8, pp 1115-1116, issn 0044-8249Article

Structure of methyl 3,4-epoxy-5,5-ethylenedioxy-exo-7,endo-11-dihydroxytricyclo[7.2.1.0^4,10]dodecane-8-carboxylateSPEK, A. L; VAN EIJCK, B. P.Acta crystallographica. Section C, Crystal structure communications. 1987, Vol 43, Num 9, pp 1841-1843, issn 0108-2701Article

The crystal structure of a hexanuclear mixed thiophenolato-alkynyl copper(I) complex: [Cu{SC₆H₄(CH₂NMe₂)-2}₂(C≡CBu^t)]₂: a model for electron deficient organocopper(I) complexes with cuprate reactivityKNOTTER, D. M; SPEK, A. L; VON KOTEN, G et al.Journal of the Chemical Society. Chemical communications. 1989, Num 22, pp 1738-1740, issn 0022-4936, 3 p.Article