bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pr10(C2)2Br16: Eine neue Struktur mit diskreten Pr10‐Doppeloktaedern
Authors: Schaloske Manuel Christian , Mattausch Hansjürgen , Kienle Lorenz , Simon Arndt 
Published: September 2008

AbstractPr10(C2)2Br16: A New Structure with Discrete Octahedra DoublesThe compound Pr10(C2)2Br16 is prepared from Pr, PrBr3, and C with a molar ratio of 7:8:6 at 780 to 820 °C as the major phase, forming polygonal black crystals with a metallic lustre which are moisture and air sensitive. It crystallizes in the triclinic system, $P{\bar 1}$, with lattice parameters a = 9.096(2) Å, b = 12.185(2) Å, c = 16.688(3) Å, α = 79.57(3)°, β = 89.86(3)°, γ = 84.38(3)°. In the crystal structure the Pr atoms form Pr6 octahedra centered by C2 groups, and two such octahedra are condensed via edges to form Pr10 units. The bromine atoms coordinate the doubleoctahedra above all free edges and connect them via $Br^{i-i}_{\rm 4/2} Br^{i-a}_{\rm 8/2} Br^{a-i}_{\rm 8/2}$ bridges. The mean C‐C distance in the C2 unit is 1.42(2) Å. HRTEM micrographs display the characteristic fragment of the Pr10 double octahedron. Furthermore antiphase domains are identified as specific defects in the structure.
The Structure of Virus Capsids
Authors: Andersson Sten 
Published: September 2008

AbstractWith the new periodic exponential mathematics, with new structure building principles (morphotropic, bilateral and disk), with the plural concept and the volume variations, we have a good understanding of the evolution of the structure of viruses. A massive demonstration of this is the simple Blue Tongue series. The structures of nine viruses from the smallest to the very big capsids are described as closely related: Parvovius (m=1), Coxsackie (m=2), Semliki (m=3), Simian (m=4), Cowpea mosaic (m=5), Blue Tongue (m=6), Herpes (m=7), Vacant (m=8), Human Adenovirus Type 5 (m=9), Archaeal (m=10).
CaAg – SrAg – BaAg: Zwischen CrB‐ und FeB‐Strukturtyp
Authors: Harms Wiebke , Burggraf Fabian , Daub Michael , Dürr Ines , Röhr Caroline 
Published: September 2008

AbstractCaAg – SrAg – BaAg: Between CrB and FeB Structure TypeDepending on both electronic (valence electron numbers) and geometric (atom size ratios) characteristics of the contributing elements, the 1:1 compounds AIIM of the heavier alkaline earth elements A and electron‐rich transition metals M form the well known CrB or FeB structure types. Both structure types exhibit M zig‐zag chains, which are stacked in different orientations against each other. In systematic studies of the pseudo‐binary sections CaxSr1−xAg and SrxBa1−xAg three new ternary phases with different stacking variants between the CrB (cubic stacking, c) and the FeB (hexagonal stacking, h2) structure type have been prepared and determined on the basis of single crystal x‐ray data. Starting from CaAg (CrB type, stacking c), up to 25 percent of Sr (i.e. in Ca0.75(2)Sr0.25(2)Ag: orthorhombic, space group Cmcm, a = 413.4(1), b = 1157.8(3), c = 467.4(2) pm, Z = 4, R1 = 0.0453) can be substituted without a change in the structure type. At a 1:1 ratio of Ca and Sr, a new structure type with stacking sequence (hc5)2 is formed (Ca0.48(3)Sr0.52(3)Ag: space group Pnma, a = 4800.1(1), b = 471.8(12), c = 624.11(9) pm, Z = 24, R1 = 0.0881). Further reduced cubic stacking ((hc2)2) is observed in the Sr rich region with Ca proportions between 39 and 25(2) % (space group Pnma, x = 0.39(1)/0.25(2): a = 2412.2(3)/2434.67(4), b = 472.75(5)/473.97(8), c = 626.17(7)/629.2(3) pm, Z = 12, R1 = 0.0430/0.0489) where the HT‐TbNi structure type is formed. The stability range of the SrAg structure type ((hc)2) starts at a Ca content of 5 % (Ca0.05Sr0.95Ag: space group Pnma, a = 1643.1(2), b = 476.79(7), c = 636.27(9) pm, Z = 8, R1 = 0.0318). From a new second modification of SrAg (space group Pnma, a = 4131.5(4), b = 478.79(6), c = 638.81(6) pm, Z = 20, R1 = 0.0394) up to a Ba proportion of 8 percent, the α‐CaCu structure type with sequence (hch2c)2 is formed. The stability range of the FeB structure with purely hexagonal stacking extends from Sr0.84(1)Ba0.16(1)Ag (a = 830.78(12), b = 479.35(8), c = 644.93(11) pm, Z = 4, R1 = 0.0413) to the border phase BaAg. In an accompanying computational study, the chemical bonding in the binary compounds CaAg, SrAg and BaAg is analyzed using FP‐LAPW band structure methods. Together with geometrical criteria, the results are used to compare and discuss the stability of the different stacking variants of the polar intermetallic 1:1 phases inbetween the CrB and the FeB structure type.
Die molekularen Cluster [Bi10Au2](EBi3X9)2 (E = As, Bi; X = Cl, Br) – Synthese, Kristallstrukturen, Drillingsbildung und chemische Bindung
Authors: Wahl Bernhard , Ruck Michael 
Published: September 2008

AbstractThe Molecular Clusters [Bi10Au2](EBi3X9)2 (E = As, Bi; X = Cl, Br) – Synthesis, Crystal Structures, Twinning and Chemical BondingCooling stochiometric mixtures of molten Bi, BiX3, (X = Cl, Br), E (E = As, Bi), and Au yields black crystals of the low‐valent, molecular compounds [Bi10Au2](EBi3X9)2. The molecules consist of an icosahedral [Bi10Au2]6+ cluster enclosed by two (EBi3X9)3− hemi‐spheres connected via Au–E bonds. The discrepancy of the symmetries of the heteroicosahedron (D5d) and the caps (C3v) gives rise to pseudomerohedral twinning. As a consequence of the superposition of three monoclinic unit cells (space group P21/c; e.g. a = 1059.02(5) pm, b = 1528.60(5) pm, c = 1463.55(6) pm, β = 93.69(1)° for E = Bi, X = Br), the diffraction patterns of the crystals simulate trigonal R‐centered cells with lattice parameters of a ≈ 3000 pm and c ≈ 1700 pm. The constitution of the molecules can be rationalized in terms of an uncommon combination of known and new structural motives: The Wade cluster [Bi10]4+ is capped by two Au+ atoms forming the hetero‐icosahedron [Bi10Au2]6+. In the anionic caps (E0BiII3X9)3−, the BiII atoms are in square planar coordination of four halogenide anions and are furthermore bonded to the E atom on the central axis of the molecule. Since the interaction between E and Au can be classified as a donor‐acceptor bond, the [AuI(E0R3)]2− fragment with R = BiIIX2/1X2/2 is a complex analog to cations [AuI(E0R3)]+ with E = P, As, Sb and R = alkyl or aryl.
Co2As2O5 – the First Cobalt(II)‐Arsenate(III)
Authors: Lösel Stefan , Hillebrecht Harald 
Published: September 2008

AbstractCo2As2O5 was obtained as a by‐product from the single crystal growth of CoAs2. The triclinic crystal structure ($P{\bar 1}$, a = 6.223(1), b = 9.169(2), c = 9.259(2) Å, α = 66.95(3), β = 82.18(3), γ = 79.28(3)°, Z = 4, R1(F) = 0.057, wR2(F2) = 0.141) represents a new structure type. As typical for AsIII it contains trigonal‐pyramidal ψ‐tetrahedra [AsO3]3−. The four crystallographically different As‐atoms are arranged in monomeric units and trimeric chain fragments [As3O7]5−. The surroundings of the four cobalt(II) atoms are remarkably unequal and show tetrahedral, trigonal‐bipyramidal and distorted octahedral coordinations. The octahedra form double‐chains linked to layers by the trigonal bipyramids and dimers of the tetrahedra.
Synthesis and Characterization of the First Salts of the ortho‐Selenidoindate Anion [InSe4]5−
Authors: Heine Johanna , Dehnen Stefanie 
Published: September 2008

AbstractSingle‐crystalline potassium salts of the so far unknown ortho‐selenidoindate anion [InSe4]5−, K12[InSe4]2Se (1), K9[InSe4][Se2]Se (2), and a novel hydrate of the decaselenidotetraindate anion [In4Se10]8−, [K8(H2O)11][In4Se10] (3), were prepared and structurally characterized by means of X‐ray diffractometry. The investigations complete the series of known ortho‐chalcogenidoindate anions and show further peculiarities of the indate chemistry with respect to the properties of related stannates.
SrNi2Ge and SrNi3Ge2 – Two Related Hexagonal Germanides
Authors: Hlukhyy Viktor , Fässler Thomas F. 
Published: September 2008

AbstractThe strontium nickel germanides SrNi2Ge and SrNi3Ge2 were prepared by melting mixtures of the elements in an arc‐furnace under an argon atmosphere. Single crystals were obtained by special heat treatment in welded tantalum ampoules. The compounds were investigated by X‐ray diffractions both on powders and single crystals. SrNi2Ge crystallizes with the hexagonal GdPt2Sn structure with space group P63/mmc, a = 4.128(1), c = 10.479(6) Å, wR2 = 0.105, 92 F2 values, 9 variable parameters. In this structure the nickel and germanium atoms build two‐dimensional [Ni2Ge] layers, which are separated by the Sr atoms. The crystal structure of SrNi3Ge2 can be described as a substitution variant of the YPtAs structure with space group P63/mmc, a = 4.0511(1), c = 14.2187(6) Å, wR2 = 0.075, 117 F2 values, 12 variable parameters. Two adjacent [NiGe] layers in this structure are interconnected by Ni atoms, forming [Ni3Ge2] blocks, which are separated by Sr atoms. The structure of SrNi2Ge and SrNi3Ge2 both are related to the AlB2‐type structure. The crystal chemistry and chemical bonding in these structures is discussed in terms of group‐subgroup relation, LMTO band structure calculation, and analysis using the Electron Localization Function (ELF).
Solvothermal Syntheses, Crystal Structures and Selected Optical Properties of [M(C8N5H23)]2Sn2S6 (M = Co, Fe, Ni; C8N5H23 = tetraethylenepentamine)
Authors: Pienack Nicole , Lehmann Stefanie , Lühmann Henning , El‐Madani Marzog , Näther Christian , Bensch Wolfgang 
Published: September 2008

AbstractThree new thiostannates [Co(C8N5H23)]2Sn2S6 (I), [Fe(C8N5H23)]2Sn2S6 (II) and [Ni(C8N5H23)]2Sn2S6 (III) were synthesized under solvothermal conditions. In all compounds the [Sn2S6]4− anion acts as a bidentate or μ2 ligand bridging two symmetry related [M(C8N5H23)]2+ cations. Despite the identical building units only compounds I and II are isostructural crystallizing in the tetragonal space group I41/a, whereas compound III crystallizes in space group P21/n. A detailed analysis of the intermolecular interactions reveals remarkable differences between I/II and III which may be responsible for the crystallization in different symmetries and space groups. The slightly different bonding situations in the [Sn2S6]4− anion in I/II and III are reflected in the Raman spectra. For all three compounds the UV/Vis spectra show d‐d transitions energetically below the absorption edge.
Dimerization of the 2‐(Methylselenomethyl)benzimidazole‐silver(I) Cation Involving a AgI–AgI Interaction
Authors: Leboschka Markus , Sieger Monika , Niemeyer Mark , Záliš Stanislav , Kaim Wolfgang 
Published: September 2008

AbstractReacting the bidentate ligand 2‐(methylselenomethyl)‐1H‐benzimidazole (msb) with AgBF4 in CH3CN did not produce the expected [Ag(msb)2]+ ion with two five‐membered chelate rings but the dimeric [Ag2(msb)2]2+, isolated and crystallized from acetonitrile/methanol as {[Ag(msb)(CH3CN)]2}(BF4)2 with six‐membered chelate rings Ag‐Ag‐Se‐C‐C‐N involving a Ag‐Ag bond of 3.156(1) Å distance. DFT calculations reproduce the observed molecular structure of the dication.
Model Studies on the Formation and Reactions of Solid Glycine Complexes at the Coasts of a Primordial Salty Ocean
Authors: Yusenko Kirill , Fox Stefan , Guni Petra , Strasdeit Henry 
Published: September 2008

AbstractLaboratory experiments pertinent to the prebiotic hot‐volcanic‐coast scenario are described. When artificial primordial seawater which contained NaCl, KCl, MgCl2, CaCl2, and a small amount of glycine (Hgly) was evaporated to dryness, it was found that in the remaining solid salt mixture the amino acid was exclusively present as CaCl2(Hgly)·H2O (1). The coordination compound 1 was also obtained by controlled efflorescence of the corresponding trihydrate CaCl2(Hgly)·3H2O (2). A characteristic structural feature of crystalline 2 is [CaCl(Hgly)(H2O)3]+ units that are interconnected to form one‐dimensional coordination polymers. On thermolysis at 350 °C in a nitrogen atmosphere, compound 1 yielded, inter alia, 15 different methylated and ethylated pyrroles. In contrast, the artificial sea salt–glycine mixtures, despite containing 1, produced no detectable amounts of organics under the same conditions. Hydrochloric acid from thermal hydrolysis of the sea salt component MgCl2·6H2O may be responsible for this different behavior. 1, 2, and the related compounds CaCl2(Hgly)2·4H2O (3), and MgCl2(Hgly)2·2H2O (4) have been prepared in analytically pure form on a multi‐gram scale. Methods used in this study were single‐crystal and powder X‐ray diffraction, infrared and Raman spectroscopy, thermogravimetric and differential thermal analysis, and gas chromatography–mass spectrometry.
Dinuclear Complexes with Dithiolate‐bridged Square‐pyramidal and Octahedral Nickel(II) Ions – Syntheses, Characterization, and Crystal Structures
Authors: Lozan Vasile , Syre Ronny , Kersting Berthold 
Published: September 2008

AbstractThe ability of the dinuclear nickel(II) complex [NiII2L(L′)]+, where L2− represents a macrocyclic N6S2 ligand, to coordinate monodentate coligands has been examined. Three complexes with L′ = CH3CN, CH2=CHCN, and (BH3CN)− have been synthesized: [NiII2(L)(NCMe)][BPh4]2 (3), [NiII2(L)(NCCH=CH2)][BPh4]2 (4), and [NiII2(L)(NCBH3)][ClO4] (5). All complexes were characterized by elemental analysis, IR and UV/Vis spectroscopy, and X‐ray crystallography. The complexes were found to be isostructural. Each coligand is bonded in a monodentate fashion to generate a central N3Ni(SR)2NiN4 core structure, with the dithiolate‐bridged NiII ions in square‐pyramidal N3S2 and distorted‐octahedral N4S2 coordination environments, respectively. The charged (BH3CN)− group interacts more strongly with the [Ni2L]2+ fragment than the neutral nitrile ligands as reflected by the Ni–N(nitrile) distances which are significantly longer in 3 and 4 than in 5. An analysis of the temperature‐dependent magnetic susceptibility data for 3 reveals the presence of weak ferromagnetic exchange interactions between the NiII ions with a value for the magnetic exchange coupling constant J of 39 cm−1 (H = −2JS1S2).
Bi‐ and Trinuclear Copper(II) Complexes with a Bridging Pyrazole/Oxime Ligand: Structures and Magnetic Properties
Authors: Penkova Larysa , Demeshko Serhiy , Haukka Matti , Pavlenko Vadim A. , Meyer Franc , Fritsky Igor O. 
Published: September 2008

AbstractThe pyrazole‐based asymmetric ligand 3‐[(1E)‐N‐hydroxyethanimidoyl]‐4‐methyl‐1H‐pyrazole‐5‐carboxylic acid (L) is shown to serve as a versatile ligand in copper(II) coordination chemistry with both the pyrazole and the oxime groups as potential bridges upon deprotonation. Three complexes [Cu2(L–2H)2(DMSO)(H2O)]·H2O (1a), [Cu2(L–2H)2(DMSO)2]·H2O (1b) and [Cu3(L–3H)2(Py)5] (2) have been isolated and their crystal structures determined by X‐ray single crystal analysis. The former feature a bis(pyrazolato)‐bridged dicopper core, whereas adjacent copper ions are spanned by a pyrazolate and an oximate in the latter complex. The presence of different species in solution depending on the pH has been demonstrated by EPR. Alterations in the protonation state are accompanied by changes in nuclearity, which cause pronounced changes in color, magnetic and EPR properties. Magnetic susceptibility measurements in the temperature range 1.8 – 300 K have revealed antiferromagnetic exchange coupling between copper(II) ions both in the bi‐ and trinuclear complexes (J = –160 cm−1 for l and –191 cm−1 for 2). The binuclear species [Cu2(L–2H)2] is almost silent in X‐band EPR at 77 K due to antiparallel alignment of the unpaired CuII electrons, while the EPR signatures of species at alkaline condition suggest a Cu‐centered S = 1/2 state.
Low‐Temperature NMR and Crystal Structure Analyses of a Hemilabile Tin Complex
Authors: Objartel Ina , Ott Holger , Stalke Dietmar 
Published: September 2008

AbstractThe reaction of SnCl2 with the Janus Head ligands Ph2PPic (1, Pic = 2‐picolyl) and Ph2P(NSiMe3)Pic (2) led to the novel tin complexes [(Ph2PPic)Sn(Cl)][SnCl3] (4) and [(Cl)2Sn{(NH)(Pic)PPh2}]·THF (6). The hemilability of the Ph2PPic (1) ligand in 4 was investigated by low temperature 119Sn and 31P NMR studies. A remarkable equilibrium of two formal SnCl2 units with 1 could be revealed. Crystal structure analysis of 4 and 6 substantiated the understanding of the hemilabile behaviour of the presented Janus Head ligands.
Sterically Demanding Aminophosphines: Palladium and Gold Complexes of 1,2‐Bis(dimesitylphosphanylamino)benzene
Authors: Majoumo‐Mbe Felicite , Lönnecke Peter , Hey‐Hawkins Evamarie 
Published: September 2008

Abstract1,2‐Bis(dimesitylphosphanylamino)benzene reacts with [PdCl2(NCMe)2] (1:1) or [AuCl(THT)] (THT = tetrahydrothiophene; 1:2 or 1:1) in dichloromethane to give dimeric, dinuclear complex trans‐[PdCl2(1,2‐{PMes2(NH)}2C6H4‐κ2P,P′)]2 (1), dinuclear complex [(AuCl)2(1,2‐{PMes2(NH)}2C6H4‐κ2P,P′)] (2) and trinuclear cationic complex [Au{1‐PMes2(NH)‐2‐AuCl(PMes2NH)C6H4‐κ2P,P′}2]Cl (3). Compounds 1‐3 were characterized by NMR spectroscopy, IR spectroscopy and X‐ray crystallography.
Tetramethoxy‐λ4‐tellane and Tetrakis(2,2,2‐trifluoroethoxy)‐λ4‐tellane
Authors: Betz Richard , Stapel Martin , Pfister Maximilian , Roeßner Felix W. , Reichvilser Moritz M. , Klüfers Peter 
Published: September 2008

AbstractTwo tetraalkoxy‐λ4‐telluranes were prepared from tellurium tetrachloride and the sodium salts of methanol and 2,2,2‐trifluoroethanol, respectively. Their molecular structures which were determined by single‐crystal X‐ray diffraction show dipolar intermolecular contacts. NBO analyses for the title compounds were conducted to assess the role of the stereochemically active lone pair on the tellurium atoms.
Measurement of some rheological properties of plastic fats with an extrusion modification of the shear press
Authors: Vasic Ilija , deMan John M. 
Published: September 2008

AbstractAn extrusion attachment for the Lee‐Kramer shear press is described. With this instrument some rheological properties of lard, margarine and shortening were measured. These included extrusion pressure and specific work of extrusion. By variation of extrusion speed and size of orifice a variety of rates of deformation could be obtained. When the rate of deformation was plotted against the specific work of extrusion, curves were obtained which were nearly straight beyond deformation rates of about 1 sec‐1. The tangent to these curves represents the apparent viscosity. By measurement of the hardness before and after extrusion the work softening resulting from the extrusion could be measured. Some possible uses of the technique are discussed.
Potentiometric titration of sulfate in some typical anionic sulfonate and sulfate surfactants
Authors: Crabb Norman T. , Persinger Harry E. 
Published: September 2008

AbstractThe inorganic sulfate content of several typical anionic surface active agents has been determined by a potentiometric titration with lead nitrate using the potassium ferri‐ferro cyanide couple to detect the end point. The recovery of added sodium sulfate varied from ‐6 to +5% of the contained amount at the 0.5% sulfate level.
Preparation and plasticizing characteristics of a series of symmetrical and unsymmetrical N,N‐Disubstituted oleamides
Authors: Magne Frank C. , Mod Robert R. , Skau Evald L. 
Published: September 2008

AbstractThirty‐five N,N‐disubstituted oleamides, mostly dialkyl oleamides, have been prepared and evaluated as plasticizers for vinyl chloride‐vinyl acetate copolymer to investigate the relative effect upon plasticizer performance of N,N‐symmetrical and unsymmetrical substitution; groups such as alkyl, cycloalkyl, benzyl, 2‐alkoxyethyl, 2‐acetoxyethyl, 2‐(3‐carbobutoxypropionlyoxy)ethyl, 2‐(3‐carbohexanoxypropionyloxy)ethyl, and cyanoethyl have been investigated in systematic combinations. The compatibility of symmetrical or unsymmetrical N,N‐dialkyl oleamides, involving normal, branched, or cyclic alkyls, is controlled by the total carbon count of the combined substituent groups rather than that of the larger group. For retention of compatibility the total carbon count must not exceed about 13 atoms. Symmetrical and unsymmetrical dialkyl oleamides of the same total alkyl carbon count do not differ significantly in their plasticizing characteristics. Acyclic N,N‐dialkyl oleamides are, with few exceptions, highly efficient plasticizers, which impart good, sebacate‐like, low‐temperature impact performance to the plastic composition. A substituent attached to the nitrogen through a secondary carbon severely impairs plasticizer efficiency and cyclic or cycloalkyl substituents are detrimental to low‐temperature performance. Substitution of an alkyl group for one of the N,N‐disymmetrical substituents has little or no effect upon low‐temperature impact performance. Many of the disubstituted oleamides impart antistatic properties to the plastic composition.
C18‐saturated cyclic acids from linseed oil: A structural study
Authors: Friedrich J. P. 
Published: September 2008

AbstractThe preparation of C18‐saturated cyclic acids from linseed oil by heat treatment in the presence of alkali, followed by hydrogenation and subsequent isolation of the cyclic fraction, gives rise to a series of at least 11 isomers as evidenced by GLC. Eight of these isomers have now been shown to be geometric pairs of positional isomers with the following general formula: {fx244–1} An unequivocal synthesis of isomers (x=0,1,2 and 3) indicates that the principal positional isomer (ca. 55%) of HCal is 9‐(2′‐n‐propylcyclohexyl)‐nonanoic acid. This isomer undoubtedly results from the cyclization of 10,12,14‐octadecatrienoic acid present in the isomerized mixture. The predominance of this isomer is further substantiated by mass spectral analysis. The four positional isomers prepared constitute about 80% of the mixture as determined by gas‐liquid chromatography. The four synthetic aromatic positional isomers show single peaks whereas their hydrogenated counterparts show two peaks. Thus each of the positional isomers of saturated cyclic acids is composed of two geometric isomers.
Quantitative determination of cyclopropenoid fatty acids in cottonseed meal
Authors: Levi R. S. , Reilich H. G. , O'Neill H. J. , Cucullu Alva F. , Skau E. L. 
Published: September 2008

AbstractA rapid analytical procedure for determining the residual cyclopropenoid fatty acids (CPA) in cottonseed meal has been developed. The procedure involves room‐temperature extraction of crude CPA‐containing lipids with a hexane‐water‐acetone azeotrope solvent, followed by a benzenemethanol wash. The crude lipids are then converted to methyl esters by methanolysis with sodium methoxide. Extraction with petroleum ether, followed by washing with aqueous acetone, results in a substance which is free from interfering materials. The purified methyl esters are then analyzed for CPA by a spectrophotometric modification of the Halphen reaction.
Fatty acid composition and glyceride structure of piglet body fat from different sampling sites
Authors: Stinson C. Gail , deMan John M. , Bowland John P. 
Published: September 2008

AbstractPigs were slaughtered at 16 weeks of age, and fat samples were obtained from outer and inner shoulder, outer and inner loin, and kidney. Fatty acid composition and glyceride type of distribution were determined. Glyceride structure was determined by pancreatic lipase hydrolysis. There were highly significant differences in fatty acid composition between sites. Fatty acids containing less than 18 carbon atoms were preferentially incorporated in the internal positions of the glycerides. The content of saturated fatty acids and fatty acids containing less than 18 carbon atoms at the 2‐position of shoulder and loin glycerides was higher than in kidney glycerides. Differences in glyceride types were noted between sites.